Oughtred Literature Search Program

Literature Search of the Oughtred Society Journals

Journal of the Oughtred Society Index

Vol. 0, No. 0, August 1991
Author	Title	Page No.
The Editors	Editorial	1
Rodger Shepherd	The June Meeting in Oakland	3
The Editors	Proposed Projects	5
Bob Otnes	Saul Moskowitz - In Memoriam	6
Bob Otnes	The Otis King Slide Rule	7
Bob Otnes	The Charpentier Calculator	9
Bob Otnes	Buro-Antik Auction in Koln, April 1991	12
The Editors	Information	14
The Editors	Letters and Advertisements	16

Vol. 1, No. 1, February 1992
Author	Title	Page No.
The Editors	The Journal of the Oughtred Society	1
The Editors	The June 1992 Meeting	1
The Editors	Reprinting Cajori	1a
The Editors	Wanted: Slide Rule Articles	4
Rodger Shepherd	Pickett Metal Slide Rules	5
Bruce E. Babcock, Ph.D.	George Washington Richardson's Direct Reading Slide Rules	9
Henry Aldinger	The Gilson Slide Rule Company	14
Al Bennett	Small Wonder	16
Rodger Shepherd	Pickett's Eye-Saver Yellow	18
Bob Otnes	Log Log Scales	19
Bob Otnes	Buro-Antik Auction in Koln, November 2, 1991	24
Rodger Shepherd	Slide Rule Reviews	26
Robert K. Otnes	Slide Rule Reviews	26
Robert K. Otnes	Slide Rule Reviews	27
Robert K. Otnes	Slide Rule Reviews	27
The Editors	Information	28
The Editors	Letters	28

Vol. 1, No. 2, August 1992
Author	Title	Page No.
The Editors	Editorial	1
Rodger Shepherd	The June 1982 Meeting in Oakland	2
Osborne Price	Oughtred Society Principle	4
Don Hudson	Comments on Slide Rule Nomenclature	5
Bob Otnes	Slide Rule Pencils	11
Henry Aldinger	Gilson Slide Rules Revisited	13
Conrad Schure	The Hart Equationor	15
Conrad Schure	The SMALL Calculator - Part II	17
Izebrand Schuitema	Slide Rule Cross Sections	19
Katsunori Kadokura	Chronology of Japanese Hemmi Slide Rules	34
Rodger Shepherd	How I Do It	39
Bob Otnes	The Market Report	41
The Editors	Slide Rule Reviews	43
The Editors	Information	44
Bobby Feazel	Letters	44

Vol. 2, No. 1, March 1993
Author	Title	Page No.
The Editors	Editorial	1
Rodger Shepherd	The June, 1993 Meeting	1a
The Editors	Photographic Standards	2
The Editors	Cajori and Scanning	3
The Editors	The Keuffel & Esser Issue	4
The Editors	W.L.E. Keuffel	5
The Editors	The Jack Burton Collection	15
Gordon Anthony	The K&E Braille Slide Rule	19
Bob Otnes	Thacher Notes	21
Osborne I. Price	The Rare K&E 4110, An Improved Mannheim Rule	26
Conrad Schure	The Conrad Schure Collection	28
Osborne I. Price	Keuffel & Esser Patents	34
Rodger Shepherd	How I Do It	38
Mel Larson	The Runner	40
Mel Larson	Runner, Indicator or Cursor?	47
The Editors	K&E Issue - Concluding Thoughts	49
Bob Otnes	The Market Report	50
Conrad Schure	Letters	51
Don Hudson	Letters	52

Vol. 2, No. 2, October, 1993
Author	Title	Page No.
The Editors	The Editorial	1
Rodger Shepherd	The June 1993 Meeting in Oakland	1a
Dieter von Jezierski	The Rietz System and Max Rietz	3
Rodger Shepherd	The End of the ARISTO Slide rules: A Case Study	5
Booby Feazel	Richard A. Gilson	8
Werner H. Rudowski	German Patents and the Columbia	13
Bruce E. Babcock	An Error on a Slide Rule for 50 Years?	15
Rodger Shepherd with Herschel E. Sawyer	How I Do It	18
Jim Conrad	Letters	21
Wayne Feely	Letters	22
Ysebrand Schuitema	The ALRO Circular Slide Rule	24
Bob Otnes	The Market Report	38
Bob Otnes (Ed)	Reviews	39

Vol. 3, No. 1, March, 1994
Author	Title	Page No.
Rodger Shepherd	Editorial and the June 1994 Meeting	1
Hans Dennert	Dennert & Pape and Keuffel & Esser	3
Rodger Shepherd	How I Do It	7
Bobby Feazel	Palmer's Computing Scale	9
Al Bennett	The Cooper 100-inch Slide Rule	18
Conrad Schure	The Scofield-Thacher Slide Rule	20
Bruce Babcock	A Guided Tour of an 18th Century Carpenter's Rule	26
Philip E. Stanley	Letters	35
Wayne E. Feely	Hemmi/Henmi Slide Rules	38
Bob Otnes	The Market Report	39
Bob Otnes	Paper	44

Vol. 3, No. 2, September, 1994
Author	Title	Page No.
Bob Otnes	Editorial	1
Rodger Shepherd	Editorial	2
Rodger Shepherd	Editorial	2a
Wayne Lehnert	An Analysis of the Survey	5
Prof. Raymond Ayoub	Napier and the Invention of Logarithms	7
Bruce E. Babcock	Some Notes on the History and Use of Gunter's Scale	14
John Bonnycastle	Bonnycastle on Gauging	21
Hans Dennert	An Update on D&P and K&E Slide Rules	27
The Editors	Figures on the Insert	29
Bob Otnes	Paper	30
IJzebrand Schuitema	Spirit Rules	31
Wayne Feely and Conrad Schure	Thacher Slide Rule Production	38
Bobby Feazel	Special Purpose Slide Rules	43
Conrad Schure	Short Subjects	45
Tom Wyman	Short Subjects	46
Conrad Schure	Short Subjects	47
Rodger Shepherd	Short Subjects	47a
Wayne E. Feely	Short Subjects	48
Bob Otnes	The Market Report	50
Roger Shepherd, Mark Gingrich and Bob Otnes	Book Reviews	52

Vol. 4, No. 1, March, 1995
Author	Title	Page No.
Bob Otnes	Editorial	1
Bob Otnes	Jack Burton 1918 - 1994	1a
Bob Otnes	The June 1995 Meeting in Oakland	2
Bob Otnes	The September 1995 Meeting in New Jersey	2a
Bob Otnes	The November 1995 Meeting in Utrecht	3
Bob Otnes	The Calculator Meeting in Dallas	3
Bob Otnes	Article by Thacher	4
Bobby Feazel	Palmer's Computing Scale - Revisited	5
Bob Otnes	Log Log Scales - Revisited	9
Dieter von Jezierski	The A. W. Faber-Castell Columbus System	12
IJzebrand Schuitema	Translation of the Instructions for the Columbus	14
Richard Knight	Branan's Rule An Undervalued Slide Rule	16
Bruce Babcock	George Ward and The Gauger's Practice...	21
Al Bennett	Schact & Westerich Calculator	26
Robert De Cesaris, Rodger Shepherd and Ray Baron	Interesting variations in the First Metal Pickett	27
Editors	Photographs	28
IJzebrand Schuitema	Logomat Webeartikel Logomat Advertising Articles	29
Wayne Feely and Conrad Schure	The Fuller Calculating Instrument	33
Bruce E. Babcock	Two Noble Attempts to Improve the Slide Rule	41
Bob Otnes	An Example of Napierian Logarithms	46
IJzebrand Schuitema	The Appoullot Circular Slide Rule	48
Richard Knight	Letters	53
The Editors	Book Reviews	54
Bob Otnes	Travels and the Market Report	55

Vol. 4, No. 2, October 1995
Author	Title	Page No.
Bob Otnes	Editorial	1
Conrad Schure	The Annual June Meeting in Oakland	1a
Conrad Schure	The September Meeting in New Jersey	3
Ir. IJ. Schuitema	Oral Histories	5
R. C. Miller	Nystrom's Calculator	7
Bob Otnes	A Page from the 1883 Keuffel & Esser Catalog	14
John V. Knott	Fowler & Company 1898-1988	16
Alan Morris	Model Designations of Modern Era K&E Slide Rules	18
John V. Knott	Joshua Routledge 1775-1829	25
Bob Otnes	How Briggs Computed Logarithms	26
Bobby C. Feazel	Colby's Slide Rule	27
The Editors	Figures on the Insert	30
Rodger Shepherd	Translation of an Article on F. Blanc's Slide Rule	31
Peter Hopp	Otis-King Update	33
Bruce Babcock	K&E Student's and Beginner's Slide rules - 1897 to 1954	41
Dieter von Jezierski	Special Slide Rules of Faber-Castell	50
Colin Barnes	The Customs and Excise Gauging Slide Rule	53
John Brook	Letters	57
Dieter von Jezierski	Letters	57
Bob Otnes	Book Reviews	57a
Bob Otnes	The Market Report	58

Vol. 5, No. 1, March 1996
Author	Title	Page No.
Bob Otnes	Editorials and News	1
Bob Otnes Brian B. LLoyd IJzebrand Schuitema	The November 1995 Meeting in Utrecht	3
Bob Otnes	The Thomson Log-Log Slide Rule	11
Gunter Kugel	Log-Log Slide Rule of Blanc - Continued	12
R. C. Miller	Gurley Slide Rule	14
IJzebrand Schuitema	A Beer Slide Rule	17
The Editors	The Centrefold	18
Bob Otnes and Conrad Schure	The Blundell Vector Slide Rule	19
Bobby C. Feazel	A Burton Special	20
IJzebrand Schuitema	A Geological Slide Rule	21
Conrad Schure	The Wollaston Chemical Slide Rule	22
Dieter von Jezierski	Faber-Castell Combination Rules	24
Wayne Feely	Update of Known Fuller and Thacher Rules	25
Rodger Shepherd	Comment on the Fuller Listings	30
The Editors	Departments	31
Bruce Babcock	Explanation of the Back Cover Sketch	33

Vol. 5, No. 2, October 1996
Author	Title	Page No.
The Editors	Editorial and News	37
Rodger Shepherd	Editorial and News	37
Peter Hopp	Editorial and News	37a
The Editors	Editorials and News	39
The Editors	Editorials and News	39
Henry Aldinger	The Dietzgen Company	40
Rodger Shepherd	Some Distinctive Features of Dietzgen Slide Rules	42
Robert K. Otnes	Dietzgen Patents, Runners and Log-Log Scales	45
Robert K. Otnes	Dietzgen Calculation Devices	49
Bobby Feazel	The Pilot Balloon Slide Rule	51
David C. Garcelon	Solving the Keuffel & Esser Catalog Problem	52
The Editors	Illustrations in the Centrefold	54
Bruce Babcock, Ph.D.	Lawrence Engineering Service - A Tale from an American Small Town	55
Peter Hopp	Otis-King - Conclusions?	62
IJzebrand Schuitema	Slide Rule Hunting in Ireland	66
IJzebrand Schuitema	IWAMATIC 1650 and the VOTSCH-variant	66a
Tom Wyman	The Thomas Dixon Engineer's Slide Rule	68
Tom Wyman	A visit to the Deutsches Museum	69
Conrad Schure	Wollaston's Equivalents slide Rule	69a
The Editors	Letters	70
The Editors	The Internet	71
The Editors	Publications of Interest	71a
The Editors	Camera Technology	72
The Editors	The Market Report	72

Vol. 6, No. 1, March 1997
Author	Title	Page No.
Bob Otnes	Editorial	2
Hans Dennert	DENNERT & PAPE and ARISTO Slide Rules 1872 - 1978	4
Colin Barnes	T.S. Emblem Series - Oral Histories	15
Derek Slater	The Astronomical Scales of Oughtred's Calculator A Detective Story	16
Robert K. Otnes	K&E Instruction Manuals	18
Robert L. Sauer	Two Scarce K&E Rules	20
Heinz Joss	A Circular Slide Rule in the Shape of a Ring	22
Benjamin L. Schwartz, Ph.D.	Some Speciality Rules	23
Bruce E. Babcock	A K&E Slide Rule for Planer Work	25
Edwin J. Chamberlain	The Voith Slide Rule and Mechanical Pencil Combination	27
John V. Knott	British Thornton - A Slide Rule Manufacturer of Manchester England	29
John V. Knott	The British Thornton Slide Rule	30
Peter Hopp, Colin Barnes and John Knott	UNIQUE Slide Rules	32
Thomas Wyman	A Five-Piece Combination Gauging Rod and Slide Rule	45
Conrad Schure	Slide Rule Watches	47
H.M. McCully	Slide Rule Photography	48
The Editors	Letters	49
The Editors	Book Reviews	51

Vol. 6, No. 2, Fall 1997
Author	Title	Page No.
Bob Otnes	Editorial	2
Bob Otnes	Editorial	2
Bob Otnes	Editorial	2
Ed Chamberlain and Thomas Wyman	June and September Meetings	2a
Dieter von Jezierski	Further Notes on the Operation of Gunter's Rule	7
Bobby Feazel	Electrical Wireman's Combined Gage and Calculator	9
Daniel Weinstock, M.D.	The RHS Calculator	11
Philip Stanley	William Cox on the Sector	13
William Cox	the Sector	14
Bob Otnes	Elmer A. Sperry and His Calculator	19
Jane Wess	The Soho Rule	23
James Bready and Bruce Babcock	Measuring the Volume of Logs: The Timber Contenting Slide Rule	27
Paul Sanik	U.S. Army Air Corps Aerial Dead Reckoning Computer Type E-6B	32
Colin Barnes	Dating Otis-King Slide Rules	35
Colin Barnes	Fuller's Telegraph Computer	37
Bobby Feazel	The Roylance Electrical Slide Rule	39
John V. Knott	Joseph Halden & Co. A Slide Rule Manufacturer of Manchester, England	40
Rodger Shepherd	Short Articles	42
Tom Wyman	Short Articles	42a
Conrad Schure	Short Articles	43
Conrad Schure	The System Wern Slide Rule	44
The Editors	Book Reviews	45
Raymond V. Giordano	The American Scientific Instrument Market	47
Conrad Schure	Letters	50
Bob Otnes and Conrad Schure	Market Report	50a

Vol. 7, No. 1, Spring, 1998
Author	Title	Page No.
Bob Otnes	Editorial	2
Cyril Catt and Tom Wyman	Meetings	2a
Rodger Shepherd	The Dempster RotaRule	4
Bob Otnes	Notes on Frederick Post Slide Rules	7
Joachim Fischer	Napier and the Computation of Logarihms	11
Peter Soole	Blundell - Blundell Harling - W.H. Harling Slide Rules A Brief History of Blundell Harling Limited	17
Bob De Cesaris	The Mechanical Engineer	23
Pierre Vander Meulen	Some Facts and Impressions on Chinese Slide Rules	25
Tom Wyman	Slide Rules of the Stanley Rule & Level Company	30
Richard F. Lyon	Dating of the Otis King: An Alternative Theory Developed Through Use of the Internet	33
Edwin Chamberlain	Slide Rule Decimal Point Location Methods	38
Ross Grable	Analysis of a Gilson Circular Rule	53
Bob Otnes	A Golden Age 4071T by Keuffel & Esser	56
The Editors	Letters	57

Vol. 7, No. 2, Fall, 1998
Author	Title	Page No.
Bob Otnes	Editorial	2
The Editors	Meetings	2a
William Oughtred	Oughtred on Gauging - 1633 AD	4
William Oughtred	The New Artificial Gauging Line or Rod - Excerpts	5
Mark Rees	Two Early Slide Rules	9
Bob Otnes	Review	12
Colin Barnes	Some Notes on Rules from the Former Soviet Union	13
Peter Hopp	1998 Membership Survey of Pocket Watch Type Rules	17
The Editors	An Interview with Jack Burton and Gordon Anthony: The End of the Slide Rule Era at Keuffel & Esser - Part I	18
Dieter Von Jezierski	Slide Rules By Molter	24
Robert J. Sauer	Lalanne's Glass Slide Rule and an Associated Instruction Book	25
Bob Otnes	American Slide Rule Instruction Books Before 1890	31
Bob Otnes	The W.H. Harling, Ltd. Company	34
Peter Stevens	A Brief History of the W.H. Harling, Ltd. Company	35
David Goodson	Crafting Scale Rules by Hand - An Historical Note	36
Henry Aldinger	Common Graduation and Early U.S. Slide Rules	42
Peter M. Hopp	Fowler's Pocket-Watch Type Calculators	43
Bob Otnes and Robert Soltis	Short Topics	50
IJzebrand Schuitema	An Introduction to Articles on Dutch Contributions to Slide Rule History in the 20th Century	53
IJzebrand Schuitema	No. 1 - K. Kasper and His Sewerage Rule	54
Tom Wyman	The Slide Rule in College	57
Rick Blankenhorn	The Marketplace	58
IJzebrand Schuitema	European Organization of Slide Rule Collectors	60
Bob Otnes Don Black Mary Ferrari	A Note to Authors	63

Vol. 8, No. 1, Spring, 1999
Author	Title	Page No.
Bob Otnes	Editorial	2
The Editors	Meetings	2
The Editors	Correction	2
Rodger Shepherd and Dieter von Jezierski	The Molter Slide Rule	3
Robert J. Sauer	Is Gauging an Archaic Practice?	5
Rodge Shepherd	More on the Capacity of Barrels	8
Conrad Schure	The French Lalanne Glass Slide Rules	10
Bruce Reichelt	Pickett & Eckel Slide Rule Timeline	11
The Editors	Letters	12
The Editors	Reviews	14
D. J. Whythe, B.Sc., A.M.I.E.E.	The Whythe Complex Slide Rule In Fuller Style	15
The Editors	An Interview with Jack Burton and Gordon Anthony: End of the Slide Rule Era at Keuffel & Esser - Part II	18
The Editors	How D&P and K&E Made Slide Rules	23
Edwin J. Chamberlain	Long-Scale Slide Rules	24
Dieter von Jezierski and Rodger Shepherd	Faber-Castell Model Numbers	35
Bob Otnes	Adolph Keuffel and the Later K&E Slide Rules	37
IJzebrand Schuitema	Articles on Dutch Contributions to Slide Rule History in the 20th Century No. 2 - F.J. Vaes	39
Jane Rees	The Vade Mecum Slide Rule designed expressly for the timber trade by George Bousfield	43
Bob Otnes	Direct Reading Frequency Response Slide Rule	49
Rick Blankenhorn	The Market Place	51
The Editors	Articles for the Fall Issue	52

Vol. 8, No. 2, Fall, 1999
Author	Title	Page No.
Tom Wyman	Editorial	2
Tom Wyman	Editorial	2a
The Editors	Meetings	3
Bob Otnes	George Fuller and His Slide Rule	4
Cyril Catt	Slide Rule Accuracy	5
Bob Otnes	The Gunter Rule	6
Bob Otnes	Robertson's Slide Rule with Runner - 1788	7
M. Jomard	The Slide Rule in France - 1815	11
Al Mosby	The Pickett and Eckel Paper Slide Rule of 1943	17
IJzebrand Schuitema	Aricles on Dutch Contributions to Slide Rule History in the 20th Century No. 3 - R.E.P. Wolthekker and His Road Curvature Slide Rule	21
Dennis Maack, Ph.D.	An Unusual Russian Machinists' Rule	23
The Editors	An Interview with Jack Burton and Gordon Anthony: End of the Slide Rule Era at Keuffel and Esser - Part III	27
J. E. Burns, MSc, FInstP	Slide Rules for Calculating Radiographic Exposure	33
James Bready	An Interesting Fowler Textile Calculator	40
Conrad Schure	Cattle Gauge Slide Rules	41
Eli Maor	The Number e	43
Peter M. Hopp, C.Eng, M.B.C.S.	Pocket-Watch Slide Rules	45
Gary Steinbaugh, P.E., J.J.	Bach and the Slide Rule	52
Mike Gabbert	Slide Rule Competition in Texas High Schools	56
J. St. Vincent Pletts	An Article from the Past on Log-Log Slide Rules. Some Slide Rule Improvements	59
ir. H. van Herwijnen	How to Make Pictures of Slide Rules with a Digital Camera	62
Rodger Shepherd and Dieter von Jezierski	More on the Molter Slide Rule	63
The Editors	Arithmographe par M. Gattey	64

Vol. 9, No. 1, Spring 2000
Author	Title	Page No.
Tom Wyman	Editorial	2
Tom Wyman	Meetings	2a
Panagiotis Venetsianos	A.W. Faber Castell Slide Rules - The Relationship Between Date of Manufacture and Indication of Brand Name, Model Number, and Model Name	3
Joseph Soper	On Mandrels and Electroforms - The Making of Molded Slide Rules at the Keuffel & Esser Co.	7
Bob Otnes	The Market Report	8
Graham Ford	What is IT?	8
Clay Castleberry	A Challenge to Oughtred Society Members	9
Donald F. Murtagh	Slide Rules and Slide Rule Type Devices	9a
Heinz Joss	A Letter Regarding the Molter Slide Rule	10
Alex E. S. Green	Operations Analysis and the 20th AF Slide Rules of WW II - August 1944 to September 1945	11
Rodger Shepherd	Two Log Spiral Devices	23
Jay Francis	The Back-Light Screen Projection Slide Rule	27
Conrad Schure	Unique Use for Slide Rule as Advertisement	31
Conrad Schure	The Robinson Calculator	31a
Jay Francis	Errors in Manufacturing of the Pickett C19 Collins Radio Microwave Slide Rule	32
John Mosand	Two Unusual Types of Trigonometric Scales	33
Bob Otnes	Modelling Slide Rule Standard Deviation	35
Shannon Freudiger, Michael Freudiger, and Dr. Robert Koppany	A Qualitiative Analysis on a Quantitative Device	38
John Knott	Wages Calculating Machine Made by John Davies & Son of all Saints Works, Derby	41
Heinz Joss	A Circular Slide Rule to Calculate Production Data for Safety Matches	42
Peter M. Hopp C.Eng. M.B.C.S.	Mystery Pocket-Watch Calculators	44
Henry Aldinger and Ed Chamberlain	Gilson Slide Rules - Part I - The Small Rules	48
The Editors	Henry P. Aldinger, Jr. - An Autobiography	61
John Knott	Index 1995 Through 1999	62

Vol. 9, No. 2, Fall, 2000
Author	Title	Page No.
The Editors	Hans Dennert (1926-2000)	1
Tom Wyman	Sixth International Meeting a Resounding Success	1a
Robert De Cesaris	Meetings	2
Thomas Wyman	Binding Copies of the JOS	3
Rodger Shepherd	Symposium in Greifswald in September 2000	3a
Rodger Shepherd	And One Thing Led to Another ...	4
James Bready	Market Report for the June Meeting	5
The Editors	The Oughtred Society Website	5
Herman van Herwijnen	The Beginning Collector	6
Hugh Tidy	A Poor Man's Guide to Searching for Slide Rules in England	7
IJzebrand Schuitema	Slide rules for Underwater Activities	9
Walter Shawlee 2	Thousands of Rules and Millions of Bytes Later - The Slide Rule Universe and Other Internet Stories	13
Dr. Ing. Federico Ramirez Santa-Pau	The Artillery Graphical Firing Table: A Description of a Specialized Slide Rule	17
Peter M. Hopp. CEng. MBCS	Ivory, Bone, or Plastic?	21
The Editors	Book Reviews	23
The Editors	Letters	25
Heinz Joss	A Tablet Slide Rule by Julius Billeter, Zurich	27
Brian Borchers and Noel H. Cotter	The Sun Hemmi System of trigonometric and Hyperbolic Scales	28
Dieter von Jezierski and Rodger Shepherd	Taylor, Taylorism, and Machine-time Slide Rules	32
Paul Ross and Ted Hume	Slide Rules of The Frederick Post Company	37
Henry Aldinger and Ed Chamberlain	Gilson Slide Rules - Part II - The Large Rules	47
Bruce Craven	Thoughts on Japan, Deming, Quality and the Statistical Quality Control Slide Rule	59
Paul Ross	Relay/Ricoh Slide Rules	64

Vol. 10, No. 1, Spring, 2001
Author	Title	Page No.
Tom Wyman	Editorial	1
Kate Matthews	New on the OS Website	1
Rodger Shepherd	The Faber Slide Rule Manuals by Pickworth	2
Michael P. O Leary	Pickett from a Manufacturing Perspective	13
Howard W. Andrews, Ph.D., and Conrad Schure, P.E. Photography by Carl Andrews	A Slide Rule for Wire Drawing Calculations	15
Bob Otnes	Keuffel & Esser - 1880 to 1899	18
The Editors	Classic Reprint: The Duplex Slide Rule	29
Pierre Vander Meulen	Sikes's Hydrometer and Related Slide Rules	30
Mortimer Hans	The Load Adjuster: It Looks Like a Slide Rule, But Is It?	34
The Editors	An Article from 1815 on a Circular Slide Rule	39
The Editors	Letters	42
Dieter von Jezierski	Two German Wages Calculating Machines	45
Tom Wyman	Norbert Wiener and the Slide Rule or How American Mathematicians Came of Age	46
Gary Lazarus	Financial Slide Rules	47

Vol. 10, No. 2, Fall, 2001
Author	Title	Page No.
Bob Otnes	Tenth Anniversary	1
Tom Wyman	Kilderkins, Hogsheads & Dipping Rod: A Brief History of the Slide Rule	2
Joe Soper	K&E Culture: The story behind the Bronze Buckle	9
Rodger Shepherd and Zachary Fluhr	Wages Calculators or Rim Slide Rules?	10
Dieter von Jezierski	The Faber-Castell Taschenrechner (TR): A Pocket Calculator Combined with a Slide Rule	12
Michael Freudiger Shannon Freudiger Patrick Hawthorne and Dr. Robert Koppany	Mathematics on the Moon - The Apollo Pickett	15
K. Finstuen, M.Sc., M.Ed., Ph.D.	Handicapping Derby Thoroughbreds: Edward's Minit, Race-O-Matic, and Kel-Co II Slide Rules	19
Peter M. Hopp, CEng, MBCS	John Suxspeach's Catholic Organon or Universal Sliding Foot Rule, or The First Slide Rule Patent	25
Raymond Baron	The Norden and Sperry Bombsights	30
Heinz Joss	Wittgenstein and His Calculating Devices	31
Tom Wyman	Description of Two Unmarked Slide Rules of Probable French Origin	37
Bob Otnes	The 30th Edition of the Keuffel & Esser Catalogue - 1900-01	38
Bob Otnes and Bob DeCesaris	The K&E Universal Slide Rule	45
Conrad Schure	The Keuffel & Esser Triangular Slide Rule	49
Kate Matthews	The Evolution of the 4092	52
Tom Wyman	Numeracy and the Slide Rule	55
R. Koppany	The Saturday, June 30, 2001, 11th Annual Oughtred Society Meeting	56
Bob Otnes	The Sheppard Duodecimal Slide Rule	57
George Fuller	The Spiral Slide Rule	58
Conrad Schure	The Keuffel and Esser American Slide Rule	59
James L. Sieber	Calculating Using the Diagonal Scale	60
Otto van Poelje	7th International Meeting of Slide Rule and Mechanical Calculator Collectors, Munich, September, 2001	61
The Editors	News and Reviews	63
The Editors	A Note to Authors	64

Vol. 11, No. 1, Spring, 2002
Author	Title	Page No.
Tom Wyman	Editorial	1
Bob Otnes	Editorial	2
Christopher J. Sangwin	Newton's Polynomial Solver	3
Edwin J. Chamberlain, PE	Three American printed Page Logarithmic Calculating Scales	8
Peter Holland	Printed logarithmic calculating scale by Loewe	14
Irene Dennert	Aristo Slide Rule production in Bavaria	17
Francis Wells and Tom Wyman	La Regle a Calcul: Lenoir, Gravet-Lenoir and Tavernier-Gravet Slide Rules	23
Bob Otnes and Conrad Schure	Early French Slide Rules in Various Collections	28
Howard W. Andrews, PhD.	A Slide Rule for Radiation Calculations	32
William Batcher, Ed.D.	Teaching the Slide Rule	35
Guus Craenen	Albert Nestler: Innovation and Quality	38
Rodger Shepherd	Letters	46
Henry Aldinger as told to Bob Otnes	The Voltage Drop Slide Rule by C.C. Moler	47
John Mosand	The ARISTO Electronic Calculators	48
Richard Knight	Two Unusual Early Slide Rules	49
Bob Otnes	The Lightning Calculator - Bonham, Hook and Pangborm	53
Dieter von Jezierski	Two Tavernier-Gravet Slide Rule Systems	59
Michael P. O Leary	One Man's Collection	62
Joe Soper	The Slide Rule and Early Astronaut Training	63

Vol. 11, No. 2, Fall, 2002
Author	Title	Page No.
Tom Wyman	The 8th International Meeting of Slide Rule Collectors - IM2002	1
Conrad Schure	The East Coast Oughtred Society Meeting	2
Bob Otnes	Mea Culpa	2
Richard Blankenhorn and Robert De Cesaris	The Fowler Calculators - A Catalogue Raisonne	3
Thomas Wyman	Discussing Chemistry and Steam, The Minutes of a Coffee House Philosophical Society 1780-1787	12
Conrad Schure	The Remarkable Hemmi 22	13
Wendy Rath	101 Things to Do on a Wet Afternoon	14
Joe Soper	Frederic H. Leubuscher and K&E Salisbury Products, Inc	15
Panagiotis Venetsianos	Tavernier-Gravet Slide Rules: a Chronology of Cited Examples	21
Bob Otnes	The 31st (1903) and 32nd (1906) Editions of the K&E Catalogue	24
Michael P. O Leary	The Conceptual Logarithmic Dividing Engine	33
Michael P. O Leary	The Keuffel & Esser Logarithmic Dividing Engine	35
Henry Aldinger and Bob Otnes	The Meilicke Calculators	41
Eli Maor	Shadows of the Atomic Age	42
Editor	Correction	43
Heinz Joss and Rodger Shepherd	Neither Straight, Circular nor Cylindrical: The Ring Binder Slide Rule of Franckh, Stuggart	44
Mark Glusker	Thomas Fowler's Ternary Calculating Machine: How a 19th Century Inventor's Departure from Decimal Presaged the Modern Binary Computer	48
Peter M. Hopp, C.Eng. MBCS.	Ratcliffe - Mathematical Instrument Making in the Area	50
Tom Wyman	Customs Officers on the London Docks	55
Clay Castleberry	The Easterly Rafter Slide Rule or a Man and His/My Slide Rule	56
Editor	Miscellaneous	58
Bob Otnes	American Planimeters	59

Vol. 12, No. 1, Spring, 2003
Author	Title	Page No.
The President	Message from the President	1
The Editor	The Oughtred Society West Coast 13th Annual Meeting/Show/Auction	1
The Editor	International Meeting IM2003 in Amsterdam	1a
The Editor	Book Reviews - The Collector's Library	2
Brian Borchers	Five Pickett Electronics Slide Rules	4
Tom Wyman	Textile Slide Rules - Special-Purpose Calculators for a Major Industry	8
Kate Matthews	Snipes and Poppers: A Collector's Introduction to Buying and Selling on eBay - Part One: How to Buy	16
Michael P. O Leary	How Does the Analon Work?	18
Peter Hopp, C.Eng. M.B.C.S	Suxspeach (Continued)	19
Conrad Schure	A Most Unusual K&E Slide Rule	23
Bob Otnes	Keuffel & Esser Slide Rules 1909	25
David D. McFarland	Lightning Subtraction	33
Paul Ross	A Comprehensive Hemmi Slide Rule Catalog	41
Bruce O.B. Williams	The Computing Board: An Ambitious All-Purpose Calculating Device and Some Similar Concepts	54
Bob Otnes	The Groesbeck Adder (1870)	59
Howard Andrews and Conrad Schure	The Cox Lathe Gear Computer	63

Vol. 12, No. 2, Fall, 2003
Author	Title	Page No.
Tom Wyman	IM2003 - A Memorable Event	2
Silke Tudor	SLIDE RULES At a gathering of the Oughtred Society, the reckoning may be dead or logarithmic, but the conversation is always right on the mark	5
Editor	The September 2003 Symposium in Greifswald	6
Colin Barnes	The UK Slide Rule Circle	7
Otto E. van Poelje	Book Review: The Slide Rule, Technical Cultural Heritage...	7a
Editor	Rod Lovett's Website	8
Staff	The Incredible Curta - A Nifty Thing	9
Bob Otnes	Keuffel & Esser Slide rules - 1913	10
Dieter von Jezierski	Lang's Grain Density Caliper-Slide Rule Combination	17
Bruce E. Babcock	The Evolution of the K&E 4088-2 and 4088-3 Slide Rules	20
Bruce E. Babcock	Twin Slide Rules? The K&E 4088 and the Post 1458	25
David D. McFarland	Addition and Subtraction With Slide Rules and Allied Instruments, Part I	27
Kate Matthews	Snipes and Poppers: A Collector's Introduction to Buying and Selling on eBay. Part Two - How to Sell	37
Kate Matthews	Just Popping Along	42
Bob Otnes	The Boucher Style Pocket Calculator	43
Otto van Poelje	The Demise of the Slide Rule (and the Advent of its Successors)	49
Tom Wyman	Textile Slide Rules - A Supplement	54
Connie Langland	Who Remembers What a Slide Rule Is?	57
Conrad Schure	The Imperial Equalisation Slide Rule	58
Editor	Instructions for Authors	59
Bob Otnes	A Binary Based Slide Rule	60
Howard W. Andrews	Der Rechenuhr	61
Conrad Schure	A Slide Rule to Handle Five Factors Simultaneously	63
Editor	The Mechanism of Blaise Pascal's Adding Machine	64

Vol. 13, No. 1, Spring, 2004
Author	Title	Page No.
Tom Wyman	President's Message	1
IJezebrand Schuitema	Annie Schuitema - van Beinum	1
Bob Otnes	From the Editor	1
The Editor	Book Reviews	2
Bob Otnes	Miscellaneous Rules	2a
Mortimer Hans	A U.S. Radar Slant Range Computer	3
Tom Wyman	Slide Chart Calculators - A Modest Proposal	6
Otto van Poelje	Gunter Rules in Navigation¹	11
Edwin J. Chamberlain, PE	Long-Scale Slide Rules Revisited	23
Simon A.M. van der Salm	Renard's Preferred Numbers	44
Kate Matthews	A Man and His Slide Rules - Tools for a Lifetime	54
Timo Leipala	The Hasselblatt Slide Rule System	60
John Mosand	The Amazing P Scales	64

Vol. 13, No. 2, Fall, 2004
Author	Title	Page No.
IJzebrand Schuitema	In Memoriam - Herman van Herwijnen	1
Editor	Announcements	2
Brian Borchers and Bob Otnes	Book Reviews	2a
Klaus Kuehn	IM 2004 in Bad Driburg, Germany	4
Editor	Letters to the Editor	5
Ted Hume	Announcing The Oughtred Society Slide Rule Reference Manual	7
Deborah G. Douglas, Ph.D	A Landmark Acquisition: The Keuffel & Esser Company Slide Rule Collection Comes to the MIT Museum	8
Dieter von Jezierski with Detlef Zerfowski and Paul Weinmann	A.W. Faber Model 366 - System Schumacher A Very Unusual Slide Rule	10
Clay Castleberry	The Hemmi 22: Revisiting A Dandy Little Slide Rule	17
Conrad Schure	The Museum of Early Engineering Technology	18
Rick Blankenhorn	H.W. Kearns & Co. Ltd. - Machine Time Computer by Fowler	19
William Cox	The Duplex Slide Rule¹	20
Bob Otnes	A Note on the Inverted Scale	21
Otto van Poelje	Diagonals and Transversals: Magnifying the Scale	22
Gary Flom and Totton Heffelfinger	The Bead Unbaffled	29
Tom Wyman	An 1880s American Slide Rule for Students	42
Bruce E. Babcock, Ph.D.	The Slide Rule and the Steam Engine Indicator	46
Bob Otnes	A.M. Stephenson and His Adder (1873)	55
Bob Otnes and Pano Venetsianos	The Calculator of Claude Perrault	61
Nathan Zeldes	A Memorable Slide Chart	63

Vol. 14, No. 1, Spring, 2005
Author	Title	Page No.
Tom Wyman	From the OS President	1
Otto E. van Poelje	Announcing: The Oughtred Society Award and Call for Nominations	1
Otto van Poelje	Dutch Circle Has Expanded in Focus and Name	2
Otto van Poelje	Letter	2
The Editor	Book Review	2a
Gary Flom	The Oughtred Society Swap Sheet Is Now Online	3
The Editor	Articles of Interest in the Current Issue, Bulletin of the SIS	3
Alex E.S. Green	How Slide Rules Won a War	4
Paul R. Huff	Slide Rules in the Classroom - An Anecdotal Report	12
Dagmar Rutzen	Getting Hooked on Slide Rules - A Classroom Tale	14
Christopher J. Sangwin	Non-logarithmic Slide Rules	16
Warren Salomon	Hemmi's 50-Centimeter Slide Rules	18
Clark McCoy	The K&E 4110 Power Trig Slide Rule Revisited	28
Otto E. van Poelje	Adriaen Vlacq and Ezechiel de Decker: Dutch Contributors to the Early Tables of Briggsian Loagarithms	30
Richard Smith Hughes	On the Evolution of K&E Vector Slide Rules	41
John M. Zowtiak	Don't Panic, Nothing Can Go Wrong, Go Wrong, Go Wrong,...!¹	45
Werner H. Rudowski	The Schnellkalkulator System Bloch: A Mechanical Nomographic Table	46
George E. Keane	A Short History of the Festus Manufacturing Company and its Successors, the Acu-Rule Manufacturing Company, Makers of the Acu-Rule and ACUMATH Slide Rule	51
William K. Robinson	Slide Rules with Hyperbolic Functions¹	55
John Mosand	The Aristo Scholar Series	63
The Editor	Journal of The Oughtred Society Guidelines for Authors	64
Conrad Schure	The McCoy Golf Recorder	65

Vol. 14, No. 2, Fall, 2005
Author	Title	Page No.
Tom Wyman	President's Message	2
Brian Borchers Bob Otnes	Book Reviews	2a
IJzebrand Schuitema	Mr. K. Kasper - In Memoriam	3
Brian Borchers	Prosthaphaeresis	3a
Tom Wyman	UK Slide Rule Circle Sponsors Well-Attended International Meeting, IM 2005	5
Tom Wyman, Louis Gotlib, and Ed Chamberlain	The Oughtred Society East Coast Meeting, November 11-13, 2005	5a
Rodger Shepherd Otto van Poelje	Letters	6
Otto E. van Poelje	The Oughtred Society Hall of Fame: Presentation of Awards and Fellowships	7
Gary Flom, Coordinator	The Oughtred Society Swap Sheet Online	9
Tom Wyman	The Slide Rules of Reverend William Flower	10
Conrad Schure	The Kentish Slide Rule	15
Peter Holland	Archimedes - His Approach Towards Logarithms	17
Colin Barnes	John Davis & Son (Derby) Ltd.	22
Leighton Lee III	Designing Three Variable Slide Charts	32
John Mosand	Aristo's Further Development of the Darmstadt System	34
Otto E. van Poelje	The Navigation Scale, Improved by B. Donn¹	36
Werner H Rudowski	Years become Shorter - Like the Logarithmic Distances on a Slide Rule	43
Peter Hopp	Other Men and Their Slide Rules	44
Ted Hume	The Oughtred Society Slide Rule Reference Manual	47
David D. McFarland	A Decade After The End: A Slide Rule Instruction Book Published in 1984	48
Lloyd Kannenberg	Thou Preparest a Table Before Me	53
Gary S. Flom	The Keuffel & Esser Building in New York City	54
Gary S. Flom	Interview with Gerd Keuffel	57
Richard Smith Hughes and William K. Robinson	Chinese Vector Slide Rules	59
Brian Borchers	The Crichlow Slide Rule	63

Vol. 15, No. 1, 2006
Author	Title	Page No.
Tom Wyman	"Pioneers" of The Oughtred Society	1
Otto E. van Poelje	The Oughtred Society Award 2006: Call for Nominations	2
Rodger Shepherd	Briefly Noted	2
Editor	Hans Bethe: Physicist and Slide Rule User	2
Thomas Wyman	Politics, Poetry, and England's Customs and Excise¹	3
Kate Matthews	The Beginning Collector	9
Tom Wyman	Slide Rules and Problematical Recreations	11
John Mosand	Aristo Special Models	12
Editor	J.H. Blair's Adder	14
David G. Rance	Slide Rules Are ... Music To My Ears!¹	15
Tom Wyman	The Demise of the Slide Rule	24
Richard Smith Hughes	A "Universal" Stadia Slide Rule: the Shanghai Slide Rule Factory Model Number 1005	25
Michael Konshak	The Spring Design Slide Rule Calculator	28
Clay Castleberry	China Paper Face Slide Rules - K & E Knockoffs	36
Bob Otnes	Lologs and Illologs	37
Michael Konshak	Richardson and Gilson	39
Brian Borchers	Tens' Complement Arithmetic	44
Otto E. van Poelje	Reverse Polish Notation for Electronic Calculators	45
Werner H. Rudowski	Anecdotes about Logarithms	48
Ted Hume	A Former Slide Rule Collector's Tale	49
Richard Smith Hughes	A Pocket Slide Rule for Electronic Engineers: the Tianjin 6508	50
Ted Hume	The Popular Post Versalog Slide Rule	53
Panagiotis Venetsianos and Bob Otnes	The Calculator of Claude Perrault	56
Richard Smith Hughes	The Flying Fish 1018 Gudermannian Slide Rule	58
M. D'Ocagne	Some Remarks on Logarithms Apropos to Their Tercentenary¹	61

Vol. 15, No. 2, 2006
Author	Title	Page No.
Tom Wyman, President	Congratulations, Walter Shawlee!	1
Bruce Babcock	A Short List of Slide Rule Exhibits and Other Public Activities	1a
Otto van Poelje, Clark McCoy, and Kate Matthews	The Oughtred Society Survey 2006 - Summary¹	3
Thomas Wyman	The Future of Slide Rule Collecting	4
Otto E. van Poelje	Pocketbook of the Gauge Marks¹ by Panagiotis Venetsianos Gift to Members of the Oughtred Society	8
Werner H. Rudowski	Is This The Mysterious Midget Fuller?	9
Tom Wyman	A 1595 Book Annotated by Oughtred is Offered for Sale	10
Editor	Letters to the Editor	11
Otto E. van Poelje	News from the Dutch Circle, the "KRING"	11a
Rodger Shepherd	Henry P. Aldinger, Jr. (1916-2006) An Appreciation	12
Editor	Alfred E. Busch	12
Peter M.Hopp	John Brown's Book and Spiral Slide Rule¹	13
Christopher J. Sangwin	Locating the Center of Mass by Mechanical Means	14
Tim Robinson	Modeling the Difference Engines of Charles Babbage	19
Panagiotis Venetsianos	The Gauge Mark Booklet	27
Werner H. Rudowski	The Oldest German Slide Rule	30
John Mosand	Aristo End Braces	35
Gunnar Englund	System Wern Circular Slide Rules - A Collector's Dream Come True	37
Tom Wyman	Slide Rules - Gone but Not Forgotten	41
Werner H. Rudowski	How Well Known Were Slide Rules in Germany, Austria and Switzerland Before the Second Half of the 19th Century?	42
Richard Smith Hughes	Watch Your Ps and Qs - The Pythagorean Scales - Are They Worth the Effort?	50
Richard Smith Hughes	Faber-Castell 2/84 and 2/84N Mathemas¹	58
Eli Maor	A Woman and Her Slide Rule	62
Werner H. Rudowski	How Long is One Foot?	63

Vol. 16, No. 1, 2007
Author	Title	Page No.
Tom Wyman	President's Message	1
Editor	Editorial Comment	2
Editor	The Oughtred Society Award 2007: Call for Nominations	2a
Clark McCoy	Announcement	3
Louis Gotlib	Aaron Lerner - An Appreciation	3a
Werner H. Rudowski	The Sliding Gunter - Who Was its Inventor?	5
Otto E. van Poelje	The Sliding Gunter - Reconstruction of the Partridge Scales	8
Otto E. van Poelje	The Sliding Gunter - Versions for Navigation at Sea¹	12
David D. McFarland	Tables of Quarter-Squares, Sociologic[al] Applications, and Contributions of George W. Jones	19
Editor	Annual Meeting of the Oughtred Society, June 30, 2007	26
Ronald van Riet	Slide Rules and Other Mechanical Calculating Devices in Aviation	27
Editor	Errata, JOS Vol. 15 No. 2	32
Dieter von Jezierski	Slide Rule Tie Bars	33
Tom Wyman	On Cleaning a Slide Rule	36
Richard Smith Hughes	The Faber-Castell 989 Komplex-Rechenplatte¹	37
Conrad Schure	The Ganga Ram Slide Rule	48
Peter Hopp	John Brown, "Carpenters Rules..."	50
Kate Matthews, Clark McCoy, Otto van Poelje	The Report of the 2006 Survey Committee	52
Conrad Schure	Genaille's Rods	61
Richard Smith Hughes	John R. Dempster's RotaRule Model AA; A Masterpiece in the Art of Slide Rule Design	62

Vol. 16, No. 2, 2007
Author	Title	Page No.
Tom Wyman	IM 2007: The Dutch Excel Again!	1
Otto E. van Poelje	Presentation of The Oughtred Society Award for 2007	2
Tom Wyman	Oughtred's Last Book	2
Conrad Schure	The Nystrom Calculator - The First Patented American Slide Rule	3
Allan Boardman	Recollections of a Pickett Industries Employee¹	8
The Editor	The Hart and Hatfield Adder	9
Clark McCoy	Highlights of the A.J. Boardman Collection of Pickett Slide Rules	10
Tom Wyman	More About Slide Chart Devices	15
John Mosand	Another Aristo End Brace	19
David D. McFarland	Quarter-Squares Revisited: Earler Tables, Division of Labor in Table Construction, and Later Implementations in Analog Computers	20
Simon A.M. van der Salm	Benford's Logarithmic Distribution of Digits	26
Richard Smith Hughes	Stadia or Tacheometric Slide Rules, Part II¹	32
The Editor	The Gancher and Kodoma Adder	42
Werner H Rudowski	Leibniz and His Logarithmic Calculating Cylinder	43
Bob Otnes	A "Mystery" Calculator from the Far North	47
James G. Kennedy	Arithmetic with Roman Numerals¹	48
Kate Matthews	Slide Rule Doggerel	49
Otto E. van Poelje	On Collecting, Preservation, and Stewardship	50
Tom Wyman	UKSRC Publications	52
Tom Wyman	A Summary of Gauging Practices Employed by English Excise Officers	53
Bernie Schweitzer as told to Bob Otnes	My Engineering Tools	62

Vol. 17, No. 1, 2008
Author	Title	Page No.
Editor	The Oughtred Society's New Winter Meeting	1
Editor	Obituary	1
Conrad Schure	Boucher's Bouchers	2
Otto E. van Poelje	Early Drawings of Logarithmic Scales by Gunter and Wingate	5
Editor	A New Comprehensive Index for The Journal of the Oughtred Society	10
Tom Wyman	An Update on Log-Log Slide Rules Before 1910	11
Peter M.Roget, M.D.	Description of a New Instrument for Performing Mechanically the Involution and Evolution of Numbers	15
Michael Konshak	Slide Rules for Rocketeers	22
Peter Hopp and Bob Otnes	A Letter of 1683 From William Oughtred to Elias Allen	28
Clay Castleberry	A Missing Gilson Midget?	33
Robert K. Otnes Ph.D.	Notes on Mechanical Fourier analyzers	34
Richard Smith Hughes	The Keuffel and Esser Roylance 4133 Electrical Slide Rule	42
David G. Rance	REED Riddle Solved!	46
Edwin J. Chamberlain, P.E.	Circular Slide Rules with Very Long Scales	52

Vol. 17, No. 2, 2008
Author	Title	Page No.
Thomas Wyman	IM 2008 a Resounding Success	1
IJzebrand Schuitema	My Collection Has A New Home	2
Editor	In Memoriam: Osborne Price (Sept. 30, 1930 - June 3, 2008)	4
Richard Smith Hughes	On A Mystery Slide Rule From the MIT Museum K and E Cabinet	5
Dieter von Jezierski	Sonne's Circular Slide Rule	6
Editor	The Oughtred Society Hall of Fame	9
Eli Maor	On Abaci of Every Kind	10
Bob Otnes	Eli Maor's Latest Book	16
Dieter von Jezierski	The Duplex Slide Rules of Faber-Castell	17
Thomas Wyman	Diarist Samuel Pepys and Slide Rules	22
Clay Castleberry	Dr. Prince's Refracting Rule Made by K and E	28
David D. McFarland	Square Roots by Slide Rules and Other Means	29
Paul McConnell	Slide Rules, Sextants, and the Sky: Instrumentation Milestones in Aerial Celestial Navigation	40
Dr. Ing. E.h. Gunter Kugel	Mystery Slide Rule from the K and E Cabinet at the MIT Museum	51
Ronald E. Manley	Timber Rules and Their Use	59
Editor	Oughtred's Universal Ring Dial	64

Vol. 18, No. 1, 2009
Author	Title	Page No.
Otto E. van Poelje	The Erlang Dial Slide Chart for Telephone Exchange Traffic Blocking Probabilities	1
Richard Smith Hughes	Elektro/Electro Slide Rules: A Critical Evaluation	5
Ian Lodge	Dietzgen 10-Inch Duplex Log-Log Slide Rule Chronology Part I, to 1956	10
Ian Lodge	Dietzgen 10-Inch Duplex Log-Log Slide Rule Chronology Part II: 1956 to 1973	15
Richard Smith Hughes	Confessions of A Slide Rule Addict	19
Stephan Weiss	The Tens Carry: Remarks on Didier Roth's Multiplicateur et Diviseur a Reglettes	21
Marion Moon	Function-Scale Proportion on a Slide Rule	24
Clay Castleberry	A Timepiece for the Time	32
Bruno Jannamorelli	Napier's Prontuarium	35
W. Richard Davis	The Boykin RotaRule	39
Clay Castleberry	Those Decimal-Keeping Cursors?	46
R.C. Blankenhorn	The Otis King's Patent Calculators - Catalogue Raisonne	49
Bob Otnes	Calculating Instruments at the Smithsonian - In Memoriam	52
Clay Castleberry	A Lucky Find: A K and E 4032	54
Bob Otnes	A Good Slide Rule	55
Jurgen Nestler and Colin Barnes	Albert Nestler A.G. and the Pi Symbol	56
Bob Otnes	The Lindholm Adder (1886)	62

Vol. 18, No. 2, 2009
Author	Title	Page No.
Bob De Cesaris	President's Message	1
Editor	Introducing the new Editorial Team	1
Peter M. Bloemendaal	Medical Calculating Disc by Dr. A. Lips	2
Ted Hume	Pre-announcement - The Oughtred Society 2010 Winter Meeting	6
Walter Shawlee	Strange Variations	7
Chris Hakkart and Otto van Poelje	Pre-announcement International Meeting IM2010 in Leiden, the Netherlands September 17 and 18, 2010	8
Clark McCoy and Tom Wyman	Oughtred Society 2009 Annual Meeting	9
Conrad Schure	The Ewing Apps Circular Engineers Slide Rule	11
Clay Castleberry	Multitasking Slide Rule for the 1950s	14
Brian Borchers	Book Review	16a
Editor	Book Announcement	16b
David G. Rance	15th Annnual Meeting - IM2009	17
Peter Alfeld	Many Formulas	18
Stephan Weiss	Non-decimal Slide Adders and the Carry	22
Klaus Kuhn	The Oughtred Society Awards 2009	25
Alex E.S. Green	A 90th Birthday Cake Slide Rule	27
Otto E. van Poelje	Book Review. A.W. Faber & A.W. Faber-Castell	29
Clark McCoy	Membership Report as of October 30, 2009	30
Bob Otnes	The Log Log Scales on the D and P Elektro Slide Rule of 1919	31
Thomas Wyman	The First Tables of Logarithms - A Brief Chronology	33
Richard Smith Hughes and Clark McCoy	K and E 4102 Surveyor's Duplex Slide Rule	40
Trevor Catlow	Suggestions for Dating pre-1920 Faber-Castell Slide Rules	46
Bob DeCesaris, Dieter von Jezierski, Tom Wyman	Special Comments for Robert K. Otnes	54
David Sweetman	Seeing the Light	58
John Mosand	A Brief History of the Aristo Studio Slide Rule	60
Bob Koppany	The Worthington Centrifugal Pump Specific Speed Calculator	64

Vol. 19, No. 1, 2010
Author	Title	Page No.
Kate Matthews	Notes from the Vice President	1
Kate Matthews	Oughtred Society Meetings	1
Bob Koppany	Editorial	2
Marion Moon	Square Root of 10 Folded Scales	3
Chris Hakkaart and Otto van Poelje	Invitation to IM2010 0n 17-18th September in Leiden, the Netherlands	7
Werner H. Rudowski	A Brass Slide Rule by Dennert and Pape	8
Michael V. Konshak	If You Build It, They Will Come. Slide Rule Loan Program for Schools	10
Bryan Purcell	Using Old Tools to Solve a Modern Problem. The Reintroduction of the Slide Rule to the Classrom	14
David G. Rance	The Mystery of the Disappearing Bakelite	17
Curtis A. Jones	Log Log Scale for Exponential Decay	27
Otto van Poelje	Joint Slide Rules by Peter Hopp	28
Peter Holland	Early Cooperation between A.W. Faber and Dietzgen	29
Louis Gotlib	Oughtred Society Fall East Coast Meeting 2009	30
Clay Castleberry	Public Display of Your Collection	31
David G. Rance	Who is your choice for an Award in 2010?	32
W. Richard Davis	John R. Dempster, The Remarkable Dempster RotaRule and the Extraordinary Dempster Family	33
Peter Holland	Magnetic Slide Rules by ITAB	41
Bob Koppany	A Pickett N3T Variant	46
Richard Smith Hughes	Specialized Slide Rules for Electronic Engineers: A Critical Review. My World and Welcome to It	47
Otto E. van Poelje	Calculating Disc by Benjamin Ayres (circa 1750)	54
John Mosand	The Aristo 920 Federfix - System Niemann	59
Marc Thomas	A Very Early Lenoir Slide Rule	60

Vol. 19, No. 2, 2010
Author	Title	Page No.
David Sweetman	The Kemet Reliability Calculator	1
William E. Wheeler	Building a Duplex Display Case for Duplex Slide Rules	3
David M Riches	Sterling Slide Adders	5
Bob DeCesaris	Harold David Rueb (1939-2009)	9
Werner H. Rudowski	A Pair of Old Austrian Calculating Rods in Bavaria	10
Richard Smith Hughes	The Evolution of K & E Slide Rules from 1922 to 1972	16
Editor	IM2011 17th International Meeting of Collectors of Historical Calculating Instruments	21
Simi Lyss, MD	Pickett N2T Yellow Variant	22
Otto van Poelje	French Calculating Disc - Montre Logarithmique¹	23
Clark McCoy	Clark's Corner	27
Bob Koppany	Magnifiers	28
Tom Wyman	Third Annual Oughtred Society Winter Meeting an Outstanding Event	32
Michael V. Konshak	Developing the Georgia Iron Works Hydraulic Slide rule - Negotiating with Pickett & Eckel to Make a Special Slide Rule	33
Editor	In Honor of William Oughtred, 1575-1660	38
Clark McCoy	The K&E Hudson 8	39
Curtis A. Jones	Use Your Slide Rule As a Cheap and Cheerful Wire Table	45
Panagiotis Venetsianos	Mr. Milburne and the Serpentine Line	48
David Sweetman	My First Electronic Slide Rule	53
Otto van Poelje	Sharp EL-8, an Early Electronic Pocket Calculator(1970)¹	56
Werner Rudowski	In Memoriam - Dr. Brian B. Lloyd, CBE, MA, DSc	58
R. Bruce Sandie	W&G: An Australian Slide Rule Manufacturer	59
Bob Koppany	W and G Details - Models 432 and 476	64
Huib van Noort	Demonstration Model of the Resulta Adder¹	66
Bryan Purcell	Kepler's Contribution to Logarithms and Their First Application in Astronomy	70

Vol. 20, No. 1, 2011
Author	Title	Page No.
Walter Shawlee 2	Millions of Slide Rules Are Still Made Today, with Thousands of Variations	1
Rodger Shepherd	Faber Slide Rule Manuals by Pickworth - A Postscript	4
Otto E. van Poelje	Colorful Slide Rules	5
Clay Castleberry	Stadia Slide Rules a Good Show	7
Peter Holland	A. W. Faber Model 343 - System Baur. Another Unusual Slide Rule	9
Richard Smith Hughes and Clark McCoy	Determing K and E Slide Rule Production Dates, 1922 to 1976: A Beginning	13
Editor	IM2011 to Be held in USA at MIT Campus in Cambridge, MA	15
Bob Koppany	Tie Tacks, Cuff Links, and Even Belt Buckles	16
Tom Wyman	Oughtred Society 2010 Annual Meeting Featured Rare Items	18
Bryan Purcell	The Fascinating Tale of the Fowler Magnum Pocket Slide Rule	19
David Sweetman	Slide Chart Calculators	21
Stephan Weiss	Slonimsky's Multiplying Device, an Imressive Example for Applied Mathematics	23
Werner H. Rudowski	Two Historical Instruments for Constructing Columns	31
Hans-Joachim Volrath	Nikolaus Goldmann's Architectural Rods	32
Gerhard G Wagner	The "Instrumentum Architecturae" by Balthasar Neumann	38
William K. Robinson	The Chinese Jiangshi Slide Rule	42
John Mosand	Aristo 40128: The Largest Pocket Slide Rule?	44
Paul Ross	Who Manufactured Post Slide Rules Before Hemmi? A Detective Story	45
David Rance	The Oughtred Society Awards 2010 and 2011	49
Tom Wyman	IM2010, An Outstanding Success	50
Paul J. Tarantolo Jr.	Sub-Numbering on Keuffel & Esser Slide Rules	51
Gordon Roberts	TGR Renascent Books	55
Bob Wolfson	Building a Thacher	57
Thomas Wyman	The Seldom-Seen K&E 4110 - A U.S. Naval Academy Slide Rule	63

Vol. 20, No. 2, 2011
Author	Title	Page No.
Marc Thomas	Introduction of Slide Rules in France	1
Timo Leipala	On Old Russian Cylindrical and Circular Slide Rules	8
John Mosand	Dr Peters' Slide Rule	15
W. Richard Davis	Slide Rule Mystery - Who Designed the Pickett 110ES?	16
Richard Smith Hughes	The Hemmi 301 and the Boonshaft and Fuchs Slide Rules	17
Nathan Zeldes	An Unusual Form Factor that Failed to Make the Grade	26
Richard Smith Hughes	Basic Slide Rule Operation for Scientists and Engineers	28
Otto E. van Poelje	ARISTO 10082 Disc for Level Calculations in Surveying¹	29
Thomas Wyman	Description and Use of the Sliding Gunter in Navigation	33
Dieter von jezierski and Rodger Shepherd	Thomas Kentish - His Times, His Works, and the Mysterious Man Himself	39
Tom Wyman	All Attendees Enjoyed the Fourth Annual Winter Meeting	47
Colin Barnes	Eels and a Joint Slide Rule	49
Peter Holland and Otto van Poelje	Wang LOCI Calculators¹ - Electronic Calculating by Logarithms	51
Peter Wutsdorff	Some Comments Regarding the Faber-Castell Slide Rule Mathema 2/84¹	57
Bryan Purcell	Astronomy, Logarithms, and the Slide Rule	60
Bob Koppany	The Reed Hydraulic Slide Rule	64

Vol. 21, No. 1, 2012
Author	Title	Page No.
Bob Koppany	An editorial and farewell	1
W. Richard Smith Davis	What to Do with My Slide Rule Collection - Suggestions and Alternatives	2
Jorge Fabregas Zazza, with Gonzalo Martin and Raimundo Cadenas	ARC - Amigos de la Reglas de Calculo	6
Klaus Kuhn and Jerry McCarthy	Prothaphaeresis and Johannes Werner	13
Gunter Kugel	A Mystery Early 20th Century Slide Rule	17
Timo Leipala	On Soviet Loglog Slide Rules	23
Editor	The Robert K. Otnes Award for Scholarly Achievement	25
Ian Lodge	Estimating Production Dates for Dietzgen Micromatic and Microglide Log Log Duplex Slide Rules	26
Gonzalo Martin	The Introduction of Slide Rules in Spain	33
Otto E. van Poelje	Book Review: Koch, Huxhold & Hannemann Der unbekannte Rechenstabhersteller aus Hamburg Author: Georg Schreiber, 2012	41
Editor	Hall of Fame	43
William K. Robinson	William Litell Everitt and His Circular Complex Hyperbolic Slide Rule	45
Editor	Thomas Kentish article addendum	51
Dieter von Jezierski and David Rance	George R. Stibitz's Film Slide Rule: A computing machine with logarithmic scales	52
Bob Koppany	Thacher reproductions available	58
Thomas Wyman	The K&E 4135 "Power Computer"	60
Thomas Wyman	Oughtred Society Members of the United States Offered a Diverse Program in Hosting IM 2011	63
Clay Castleberry	Aviation Novelty Slide Rules	67
Editor	Advertisement	69

Vol. 21, No. 2, 2012
Author	Title	Page No.
Editor	JOS Editorial Changes	1a
Kate Matthews	The Oughtred Society Scholarship Program	1b
Alex Green and Jesse Gordon	Slide Rules and WWII Bombing: A Personal History	2
Rodger Shepherd	The Faber Manuals by Pickworth - Revised Chronology	6
Louis J. Gotlib	Chemical Slide Rules: Their History and Use	8
David Sweetman	Reactance and Associated Slide Charts	15
Clay Castleberry	THE HOLDMAN SLIDE RULE That is Not a Slide Rule	19
Thomas Wyman	K&E's "Beatley I-Q Slide Rule"	20
Bob Wolfson	Inside the Otis King Patent Calculator	22
Richard Smith Hughes	Wichman Aristo P.A. 44 Determining True North from the Azimuth of Polaris	28
Marion Moon	Alternative Trigonometric Solutions for Rietz-type Slide Rules	32
Richard Smith Hughes	Two Celestial Navigation Slide Rules K & E 4102 Surveyors Duplex and Dennert & Pape MHR1	37
J. Jezierski and D. Rance	George R. Stibitz's Film Slide Rule	43
Otto E. van Poelje	The REKA Rechenapparat and other Logarithmic Calculating Tablets¹	44
Stephan Weiss	Tens Carry Only by Geometry - Josef Funke's Adding Device¹	49
Willy Robbrecht	About a French Circular Slide Rule by Arnault-Paineau	52
Editor	Call for Papers: IM 2013	56
David Rance and David Sweetman	Book Reviews	57
Herb Gold	Winter Meeting Attendees Bask in California Sunshine	58
Tom Wyman	OS 2012 Annual Meeting Held at the Computer Museum, Mountain View, California	60
Editor	Members Survey 2012 Summary Report, April 22, 2012	61
Editor	OS Scholarship Essays	65

Vol. 22, No. 1, 2013
Author	Title	Page No.
Editor	From the Editor	1
Richard Smith Hughes	A Layman's Guide to Chemical Slide Rules	2
Otto van Poelje	Coastal Navigation by Station Pointer & the Snellius Resection	6
Clay Castleberry	Kodak: A Nostalgic Slide Rule/Chart	14
Sean M. Stewart	The Aristo System Czerny Slide Rule for Thermal Radiation Calculations	16
Thomas Wyman	The Meyrat & Perdrizet (M&P) Pocket-Watch Calculator	25
Marc Thomas	French Slide Rules Makers in the 19^th Century From Gravet-Lenoir to Tavernier-Gravet: A Family Story	27
R. Bruce Sandie	Browne Fuller-Type Cylindrical Slide Rules	29
Marion Moon	Proportional Article Addendum	33
Panagiotis Venetsianos	MARC: A French brand of pocket slide rules	34
Colin Barnes	Separated by a Common Language	40
Charles R. Adams	Isaac Newton's TONOMETER and COLORIMETER	41
Trevor Catlow	Suggestions for Dating pre-1920 Faber-Castell Slide Rules: an Update	45
Jerry McCarthy	Danish Pig-Feeding Slide Rule	48
Tom Wyman	Pocket-Watch Calculators Produced by Scientific Publishing Company	51
Otto van Poelje	A Puzzle for Readers	54
Jerry McCarthy	IM 2012 Report	55
Paul McConnell	Summary of IM2012	56
Editor	George Keane receives 2012 Oughtred Society Award	57
Otto van Poelje	Book Review	58
Martha Prince and Richard Davis	2013 OS Winter Meeting in Tucson	59

Vol. 22, No. 2, 2013
Author	Title	Page No.
Editor	From the Editor	1
Thomas Wyman	Soho Steam Engines The First Engineering Slide Rule and the Evolution of Excise Rules	2
Inge and Werner Rudowski	The Lennep Brothers Engravers, Mathematicians, and Engineers	12
Editor	Dieter von Jezierski 1927-2013	21a
Rodger Shepherd, Dieter von Jezierski, and Robert Koppany	The Reticle Cursor - Obscure, Brilliant, and Doomed	21b
Tom Wyman and David Sweetman	Book Review	26a
Detlef Zerfowski	A 13 Years Project - An Adventure with Pain	26b
Alex Green and Jesse Gordon	Transistors, Computocracy, and Jobs	30
Peter M. Hopp C.Eng. M.B.C.S.	K&E Sperry Pocket-Watch Slide Rules	34
Marion Moon	A Twenty First Century Slide Rule	41
Richard Smith Hughes	Pickett C19-T Microwave Transmission Slide Rule	43
Otto E. van Poelje, Michel Morizet	Two "Cadrans Logarithmiques" by Le Blond and Gattey For Old-to-Metric Unit Conversions in France (1799)	46
Stephan Weiss	The Small Multiplication Table through the Centuries in Europe	54
Thomas Wyman	Something for Everyone at the Annual Meeting of the Oughtred Society	59
Editor	Winter Meeting Announcement	61a
Kate Matthews	Scholarship Program Results	61b
Kathryn DeWitt	The Nightmare Class	61c
Ori Mayer	The Value of the Logarithm	62a
Bob DeCesaris	Note from the President	62b
Clark McCoy	Annual Financial Report for the Oughtred Society for 2012	64

Vol. 23, No. 1, 2014
Author	Title	Page No.
Editor	Note from the Editor	1
Otto van Poelje	The Oughtred Society Awards	1
Bob de Cesaris	Note from the President	2
Panagiotis Venetsianos	UNIS - FRANCE: A Collective Trade Mark, Not a Manufacturer!	3
William K Robinson	The B-47 and B-52 Bombers and the Slide Rule¹	11
Richard Smith Hughes	Moinot's Stadia Slide Rule (circa 1875)¹	19
Editor	Recommended Reading	25
Clay Castleberry	Chisel Cursors Which Is Real And Which Is Faux?	26
Editor	In Memoriam	27
Otto van Poelje	Hewlett Packard Commemorative Calculators	27a
Robert J. Sauer	A K and E "Station Pointer" with Apparent WWII Connections	30
Thomas Wyman	The All-Paper Excise Rule by J. Bateman and S. Cock	32
Bob de Cesaris	Volunteer Status	37
Thomas Wyman	When Was The First Slide Rule Produced In The United States?	38
Tom Wyman	WRITING - My Take	43
Bob Koppany and Dr. Charles Koppany	CF Braun and Co. and the Pickett #12 Slide Rule	46
Edwin J. Chamberlain, PE	The Flynn Universal Trigonometric Combination Semi-Circular Slide Rule - Protractor - Sine Table - Angle Formula Finder	51
David Rance	New Exhibition Opens: "The Schuitema Collection"	56
Otto E. van Poelje	Report of IM2013 in Berlin	60
Ed Chamberlain	Northeast Oughtred Society Meeting Report	62
Tom Wyman	Logarithmically Calibrated Drafting Scales	64

Vol. 23, No. 2, 2014
Author	Title	Page No.
Editor	Note from the Editor	1
Robert De Cesaris	Note from the President	2
Robert De Cesaris	Request for Volunteers	3
Robert De Cesaris	In Memoriam Tom Wyman Slide Rule Historical Researcher, Collector, and Author; Oughtred Society Past President	4
Robert A. James	The Deaths of the Slide Rule	6
William J. Wayne	My Slide Rules	17
Richard Smith Hughes	The Peruvian - German Slide Rule Connection: The ARISTO Nr 10065 System Gr�ter	19
Cliff Frohlich	Design Considerations for the Analon Slide Rule	22
David Sweetman	In Memoriam: Dr. Alex Green	28
Thomas Wyman	Charles Hoare: His Book and Slide Rules	30
Rodger Shepherd	Pencil Slide Rules: Part 1 - An Overview	33
Panagiotis Venetsianos	A Brief Survey of Combined Slide Rules - Part 1	43
Stephan Weiss	Golding's Horse Power Computer (1908)	51
Otto E. van Poelje	Aspect Ratios of Pictures and Their Calculations by Slide Rule	55
Klaus K�hn	Collectanea de Logarithmis	59
Dick Rose	Oughtred Society Winter Meeting Report	60
Robert De Cesaris	Oughtred Society Summer Meeting Report	62
Clark McCoy	Annual Financial Report for the Oughtred Society for 2013	64

Vol. 24, No. 1, 2015
Author	Title	Page No.
David Sweetman	Note from the Editor	1
Robert De Cesaris	Note from the President	2
Otto van Poelje	The Oughtred Society Awards for 2014	4
Editor	In Memoriam	5
Rodger Shepherd	Pencil Slide Rules: Part 2 - The Devco Series	6
Panagiotis Venetsianos	A Brief Survey of Combined Slide Rules - Part 2	10
Peter Hopp C.Eng. M.B.C.S.	K&E Sperry Calculators - An Update	19
Thomas Wyman	Magnesium Slide Rules	20
Amy Ackenberg-Hastings and Peggy Aldrich Kidwell	Slide Rules at the National Museum of American History	23
Richard Smith Hughes	The Mauser-Federfix Helical Compression Spring Design Slide Rule¹	28
Clay Castleberry	Shadow Boxes Make Good Slide Rule Displays	33
David Sweetman and Nathan Zeldes	Gilbert Small's Pocket Calculator	36
Richard Simpson, Honorary Secretary, BSHM	A Joint Meeting of the James Clerk Maxwell Foundation and the British Society for the History of Mathematics (BSHM) in Celebration of the 400^th Annversary of the Publication of John Napier's Mirifici Logarithmorum Canonis Descriptio	41
Werner H Rudowski	What happened to Hemmi?	45
David Sweetman	Slide Rule Listing Conventions	47
David Sweetman	Recommended Reading	52
Robert De Cesaris	Request for Volunteers	52
Klaus Kuhn	On the Calculation of Logarithms - Karl Kommerell's Method of Repeating Squares	53
Thomas Wyman	Eugene Dietzgen's Multiplex Slide Rule Another "Rosetta Stone Slide Rule"	61
Editor	Annual Financial Report for the Oughtred Society for 2014	64

Vol. 24, No. 2, 2015
Author	Title	Page No.
David Sweetman	Note from the Editor	1
Robert De Cesaris	Note from the President	2
Kate Matthews	Education and Outreach Initiatives in the Coming Year	4
Editor	In Memoriam: Bennie Wayne Tschoerner (1941 - 2014)	4a
Werner H. Rudowski	Variants of Soho Slide Rules	6
Rodger Shepherd	Pencil Slide Rules: Part 3 - The Schauer Scale Revisited	14
Jose Gabriel Fernandez	Comments to Slide Rule Scale Listing Conventions	18
Nathan Zeldes	The EngPen: An Unusual Pencil Slide Rule	20
Richard Smith Hughes	A Chinese Probability Slide Rule: Part 1	23
Rodger Shepherd	Pencil Slide Rules: Part 4 - The Nicolet and the Monroe in Context	28
Richard Smith Hughes	Keuffel & Esser Cooke Radio, 4139/68-1460: Variants from 1940 to the End of Production (prior to 1972)	36
David Sweetman	Article Errata	39
Editor	Collectanea de Logarithmis: For Sale on DVD	41
Bryan Purcell	Diabetic Slide Rule	42
Peter Hopp	Recommended Reading: The Inquisitive Engineer	47
Robert J. Sauer	Three Addenda to Two Recent JOS Articles	49
Clark McCoy	The Origins of the K&E "Radio" Rule	51
Clark McCoy	Dating K&E Slide Rules	56
W. Richard Davis	How to Save a Warped Slide Rule	62
Editor	United Kingdom Slide Rule Circle	64

Vol. 25, No. 1, 2016
Author	Title	Page No.
Otto van Poelje	The Oughtred Society Awards	1
Robert De Cesaris	Note from the President	2
Robert De Cesaris and Kate Matthews	Highlights of IM 2015	3
Gary Flom	Slide Rule Problems: Roots and Powers on C and D Scales	6
David Lee Ingram	The Ross MERIDI-O-GRAPH for Surveying	7
Edwin J. Chamberlain	The Ross Precision Computer	10
W. Richard Davis	The Ross Rapid Computer	23
Rodger Shepherd	Obituary	27
W. Richard Davis	The Ross Student Rapid Computer	28
Edwin J. Chamberlain	A Biography of Louis Ross	29
Edwin J. Chamberlain and W. Richard Davis	The Ross Rapid Computer/Dempster RotaRule Mystery!	36
Rodger Shepherd	Pencil Slide Rules - Part 5: The Digital Transition	43
Paul McConnell	The Gerber Derivimeter	52
Phil Radley	New to Slide Rules in the 21^st Century	55
Nicola Marras	IM 2016	61
David Sweetman	Recommended Reading	62
Simon A.M. van der Salm	Letter to the Editor	63

Vol. 25, No. 2, 2016
Author	Title	Page No.
Editor	Notes from the Editor	1
Robert De Cesaris	Note from the President	2
Peter Hopp and Rod Lovett	In Memoriam Colin A. Barnes 19 February 1940 - 8 April 2016	6
Jose Gabriel Fernandez	Slide Rules "Made in Spain"	7
Richard Smith Hughes	The Highest Class Electrical Engineer's 'Universal' Duplex Slide Rule with Patent Vector and Hyperbolic Scales, 20 inches	23
David M Riches	More on Sterling Slide Adders	28
Detlef Zerfowski	The Worldwide Largest Bibliography Database on the History of Mechanical Computing Devices Online!	32
Roger V. Dollarhide	A Poor Man's Collection	35
Ian Lodge	Maurice Damien Aluminium Slide Rules	37
Marc Thomas	A Tavernier-Gravet Slide Rule Especially Made for the British Market	47
Nathan Zeldes	Elisha Kally's Water Flow Calculator	51
Ted Hume	Farewell from the Hemmi Roids	55
Stephan Weiss	Crompton - Gallagher: Boiler Efficiency Calculator (1919)	56
Editor	Collectanea de Logarithmis	64

Vol. 26, No. 1, 2017
Author	Title	Page No.
Editor	Note from the Editor	1
Robert De Cesaris	Note from the President	2
Otto van Poelje	The Oughtred Society Awards for 2016	4
David Sweetman	A Brief Introduction to Statistical Quality Control	5
David Sweetman	The "Delco-Remy" S. Q. C. LATOR	7
David Sweetman	The "GE" Quality Control Slide Rule	9
Simon A.M. van der Salm	The Pickett N-525 StatRule Statistical Scales	11
Simon A.M. van der Salm	The Shanghai SPC Slide Rule	23
David Sweetman	The Mear's Quality Control and Probability Calculator	32
David Sweetman	The QC Calc	34
Simon A. M. van der Salm	The Limpert Board A Wonderful Application of Logarithmical Scales	38
Valery V. Shilov, Sergey A. Silantiev	Jan Jozef Baranowski: Life and Machines	50
Marion Moon	Developing Slide Rule Calibration Equations for Conventional Slide Rules	55
Terry Kirkpatrick	A Puzzle	58
David Sweetman	Book Review: The Digital Slide Rule	59
David Sweetman	Book Review: Pencil Slide Rules	60
David Sweetman	Book Review: Napier 400	61
Steven Deckelman	Book Review: Meilensteine der Rechentechnik	62

Vol. 26, No. 2, 2017
Author	Title	Page No.
Editor	Notes from the Editor	1
Robert De Cesaris	Note from the President	2
Sarah McFarland	In Memoriam: David McFarland	6
Jose Gabriel Fernandez	The IGN Logarithmic Circle	7
Stephan Weiss	The Methodology of Teaching a Logarithmic Slide Rule in Historical Sequence	24
W. Richard Davis	Norma Gambrinus Circular Slide Rule	29
Peter Alfeld	The Slide Rule Explorer	35
Philip Stanley	Unusual Cursor Screws	37
Roger V. Dollarhide	A Poor Man's Collection - Part 2	39
Roger V. Dollarhide	How to Photograph Slide Rules - The Easy Way	42
Donald W. Walker	Notes on the Choice and Use of a Flatbed Scanner for Scanning Slide Rules	44
Marc Thomas	Additional Biographical Elements on Tavernier and the Lenoirs	49
T.P.Hazard	The Best Slide Rule	53
T.P.Hazard	Determining Algebraic Expressions by Use of a Slide Rule	58

Vol. 27, No. 1, 2018
Author	Title	Page No.
Editor	Note from the Editor	1
Robert De Cesaris	Note from the President	2
Otto van Poelje	The Oughtred Society Awards for 2017	4
Robert De Cesaris	In Memoriam: Ed Chamberlain	5
Panagiotis Venetsianos	All Things Come To Those Who Can Wait A Cold Case Solved After Almost Four Centuries?	6
Michael Gibson	Which Slide Rule Really Went Aboard Apollo?	11
Istvan Szalkai	General Two-Variable Functions on the Slide Rule	14
Ace Hoffman	A Digital Slide Rule	19
Jose Fernandez	Slide Rule Patents in Spain 2: 1954-1982	25
Joseph Herning	Mathematical Reflections on the Slide Rule	38
Marion Moon	Addendum to ST or SRT IM 2015 Paper	44
Bob Koppany	After the Slide Rule Calculation is Complete	45
Jacques Perregaux	Letter to the Editor	50
Rodger Shepherd	The PEN-CU-LATOR: A Truly Unique Calculator Pen	51
David Rance	Wrong Way Up! Slide Rule Instruction Aids	53

Vol. 27, No. 2, 2018
Author	Title	Page No.
Editor	Note from the Editor	1
Otto van Poelje	Media Review	1a
Robert De Cesaris	Note from the President	2
Richard Davis	In Memoriam: William Keith Robinson	4
Riki Nakamoto Robert De Cesaris Richard Davis	Oughtred Society 2018 Annual Meeting Report	5
Jim Bready	Colossus: the 10,000 Inch Slide Rule	7
Cliff Frohlich	The Hemmi 160 Statistical Slide Rule - A Description and A Mystery	17
Istvan Szalkai	Make Your Own Slide Rule Only a Monitor and Scissors Are Needed	22
Herbert Bruderer	Two Curta-Based Parallel Calculators	27
Herbert Bruderer	Rare Logarithmic Circular SlideRule Discovered: A Special Calculator for Mass Multiplications and Divisions	30
Jim Bready	A Hemmi of Two Woods	33
Richard Smith Hughes	The Boonshaft and Fuchs Direct Reading Frequency Response Slide Rule Revisited	34
Bennett McAllister and Frank Spors	Physiologic Analogues to the Slide Rule with Applications in Predictive Analysis and Assessment of Human Vision	44
Istvan Szalkai and Ace Hoffman	Constructing and Understanding New and Old Scales	51
Stephan Weiss	Gauge Points and their Advantages	58

Vol. 28, No. 1, 2019
Author	Title	Page No.
Editor	Notes from the Editor	1
Rodger Shepherd	Editorial Note:Accuracy vs. Precision	1a
Robert De Cesaris	Note from the President	2
Robert De Cesaris	In Memoriam, Robert K. Otnes	4
David Sweetman	Book Review	7
David Sweetman	Book Review	8
Editor	Announcement of International Meeting IM2019 in the Netherlands	9
Otto van Poelje	The Oughtred Society Awards for 2018	10
Editor	Richardson Pantocrat	11
Richard Smith Hughes	Black Body Radiation Slide Rules	12
W. Richard Davis	Blundell Harling F5100 - Mystery Solved	23
Ray Chandos	The Making of the Pickett Model 17 Blackbody Radiation Slide Rule	26
Editor	Past Issues of The Journal of the Oughtred Society	34
Rodger Shepherd	The CALCU-PEN CP-01	35
Nathan Zeldes	Kaufmann's Posographe	36
Paul McConnell	While in Cleveland...	44
Jose Fernandez	Long-Scale Slide Rules, from Words to Scalest	45
Editor	Annual Financial Report for the Oughtred Society for 2018	64

Vol. 28, No. 2, 2019
Author	Title	Page No.
Editor	Note from the Editor	1
Phil Stanley	Letter to the Editor	1
Robert De Cesaris	Note from the President	2
Hans Kordetzky	In Memoriam - Heinz Joss	4
Ronald van Riet	In Memoriam - Daniel Toussaint	5
Stephan Weiss	The Design of a Steam Engine by Means of the Soho Slide Rule	6
W. Richard Davis	Radium Dosage Calculator, A Secret Ruse?	12
Jose Fernandez	SLIDE RULE PATENTS IN SPAIN 1864-1953	16
Bob Schwartz	Cursor Spring Repair	24
Paul M. McConnell	A Case of Green	27
Richard Smith Hughes	The Ross Precision Computer, Part 2	31
W. Richard Davis	SPECTRO-RULE A Spectrometer User's Friend	41
James S. Wolper	Slide Rules and the Modern Calculus Student	48
Bob Schwartz and Vince Brach	Restoration of Moldy Leather Cases	50
David Lee Ingram	CIRCULAR MAPPING SLIDE RULE	51
Marc Thomas	Gravet's Patent Application for the Mannheim Slide Rule (1851)	55

Vol. 29, No. 1, 2020
Author	Title	Page No.
Jim Bready	Note from the Editor	1
Robert De Cesaris	Note from the President	2
David Rance and Peter Hopp	In Memoriam, Francis Wells	3
Robert De Cesaris	In Memoriam, Rodger Shepherd	4
Otto van Poelje	New Book Announcement: ALRO Catalogue	6
Robert De Cesaris	IM2020 Cancellation/IM2020 Experimental Virtaul Meeting Announcement	7
Jose Fernandez	Ollero: The Man and His Slide Rule	8
Cliff Frohlich	The Hemmi 405 Cement Composition Slide Rule	18
Louis J. Gotlib	Collecting Slide Rules and Reading Encyclopedic Novels - Down the Rabbit Hole We Go	25
Richard Smith Hughes	The Sun Hemmi "Electronic" Pocket Slide Rule	34
Jim Bready	Unsuccessful Successful Slide Rules	38
Herbert Bruderer	Discovery of Previously Unknown Replicas of Historical Calculting Machines Manufactured by Roberto Guatelli	42
Istvain Szalkai	On the General Shape of Scales on Slide Rules	48
Richard Juday	Students and the Slide Rule	59
Jim Bready	The Slide Rule as an Information Storage Device	63

Vol. 29, No. 2, 2020
Author	Title	Page No.
Jim Bready	Note from the Editor	1
Robert De Cesaris	Note from the President	2
Robert De Cesaris	In Memoriam, Conrad Schure	4
Alan Gluchoff	Letters to the Editor	6
Thomas van der Zijden	IM 2019 ''Calculators on the Beach'' in Scheveningen/The Hague	7
Jim Bready	Book Review	9
Editor	Announcement: Oughtred Society 2021 Annual Meeting	11
Editor	New Book Announcement	11
Simon A.M. van der Salm	The Dundee Coronary Risk-Disk	12
Valery V. Shilov, Sergey A. Silantiev, and Timo Leipala	Unknown Calculating Device of a Forgotten Inventor	29
Stephan Weiss	The Expansion Steam Engine and the Hyperbolic Logarithm from Farey to Dixon	35
Robert A. James	Future Reckoning: Calculating Devices in the Golden Age of Science Fiction	41
Detlef Zerfowski,Susanne Herden	Coorapid - A Forgotten 22.6 kg Heavy Slide Rule for Coordinate Transformations	47
Nathan Zeldes	Vizzini's Calculating Table	56
Richard Smith Hughes	The Faber-Castell 2/84N Mathema ''Universal Slide Rule'': The End of My Mythic Image	62

Vol. 30, No. 1, 2021
Author	Title	Page No.
Jim Bready	Note from the Editor	1
Robert de Cesaris	Note from the President	2
David Sweetman and Marc-Yvon Comeau	Book Review	4
Greg Miller and Tom Martin	Reducing Proof: Farmar's Spirit Rule and Some Antecedents	5
Greg Miller	Empirical Functions of Two Variables, and Dicas's Hydrometer Correction	18
John H. Runnels	A Smoking Gun: The Gilson-Richardson Connection	25
Paul McConnell	A Bulky Slide Rule	29
Jose Fernandez	Yamayo Measuring Slide Rule	32
John B. Heywood	Relating Slide Rule Accuracy to Log Scale Length	40
Phil Rodley	Fun with Slide Rules	43
Dmitry Zlatopolski	Computing Devices by Henri Genaille	49
Jim Joseph	Dowmetal and Pickett Slide Rules	53
Louis J. Gotlib	The Graphic pH Calculator	58
Clark McCoy	Annual Financial Report of the Oughtred Society for 2020	64

Vol. 30, No. 2, 2021
Author	Title	Page No.
Jim Bready	Note from the Editor	1
Robert De Cesaris	Note from the President	2
Robert de Cesaris	In Memoriam, Clay Castleberry	4
Editor	Letters to the Editor	6
Robert G. De Cesaris	A Fuller Calculator Compendium: Experimental Models, Prototypes, Production Transitions, and Uncommon Examples	8
Paul M. McConnell	A Flea Market Surprise	53
Dmitry Zlatopolski	Carl Schonbichler's Multiplication Device	54
Nathan Zeldes	Don't Mess With Celluloid!	58
Mike Syphers	A Transitional K&E 4092-3	63

Vol. 31, No. 1, 2022
Author	Title	Page No.
Jim Bready	Note From the Editor	1
Robert De Cesaris	Note from the President	2
Robert De Cesaris	In Memoriam, David Sweetman	4
Editor	Letters to the Editor	7
John H. Runnels	Gilson Slide Rules: An Appreciation	9
Stefan Heimann	The Mather & Platt Slide Rule for Sprinklers in Fire Protection	28
Richard Smith Hughes	Business and Finance Slide Rules, Part 1	32
Richard Smith Hughes	Business and Finance Slide Rules: Part 2 Two Pickett Business Slide Rules	41
Paul M. McConnell	The Winslow Strength Computing Slide Rule	48
Istvan Szalkai	All Scales x^a on One Slide Rule	56
Clark McCoy	Annual Financial Report for the Oughtred Society for 2021	64

Vol. 31, No. 2, 2022
Author	Title	Page No.
Jim Bready	Notes From the Editor	1
Robert De Cesaris	Note from the President	2
Jim Bready and Patrik Sivander	Book Review	4
Jose G. Fernandez	Aristo 6714 Three-Drum Calculator	5
David Sweetman	Seeing the Light	18
David Rance	Keeping in Rhythm	20
Jim Bready	Mystery Slide Rules	28
Edward S. Popko	The Lindbergh-Weems Second-Setting Pilot's Watch	37
Valery V. Shilov, Sergey A. Silantiev	Victor Vogel: New Facts and Forgotten Invention	52
Mike Syphers	An Early Home-Made Spring Calculation Slide Rule	57
Paul M. McConnell	A Dietzgen Slide Rule	61
Jim Bready	The Ross Vest-Pocket Slide Rule	63

Vol. 32, No. 1, 2023
Author	Title	Page No.
Jim Bready	Note From the Editor	1
Robert De Cesaris	Note from the President	2
Robert De Cesaris	In Memoriam, Bob Koppany	4
Peter Hopp	In Memoriam, Tom Martin	6
John H. Runnels	Slide Rules in the Courtroom: K&E v. Pickett	8
Hana Beswick-Jones, Amy J Hopper, Angus M Brown	Peter Mark Roget: Polymath Extraordinaire	34
Jim Bready	The "Never Off The Dial" Circular Slide Rule	40
Steven Lubar	Do Not Fold, Spindle, or Mutilate: A Cultural History of the Punch Card	42
Eric Rinehart	Pickett United States Air Force Aerial Photography Slide Rules	55
Paul M. McConnell	Yes, It is Not a Slide Rule	62
Clark McCoy	Annual Financial Report for the Oughtred Society for 2022	64

Vol. 32, No. 2, 2023
Author	Title	Page No.
Jim Bready	Notes From the Editor	1
Robert De Cesaris	Note from the President	2
Robert De Cesaris	In Memoriam, Billy Kerr	4
Robert De Cesaris	In Memoriam, Walter Shawlee II	6
Klaus Kuhn	Calculating with Tones - Sector Musicalis and Other Devices	7
Paul J. Tarantolo Jr.	Prototype K&E Patent Adjustable Mannheim Slide Rule	26
Jerry McCarthy	The Unique 'Pioneer' Long Scale Rule	32
Jose G. Fernandez	R. Fontenla Slide Rule for Navigation	47
Nathan Zeldes	The Roulette 'X' Circular Slide Rule	59

Vol. 33, No. 1, 2024
Author	Title	Page No.
Jim Bready	Note From the Editor	1
Robert De Cesaris	Note from the President	2
Robert a. James	A Slide Oddity: The Aristo Martin Space Rule	4
Detlef Zerfowski	Esoteric Biorhythm Slide Rules	12
Thomas L. Croxton	A Catalog of Pickett Metal Slide Rules	21
John H. Runnels	Where are the Gilson Clones?	38
Andries de Man	The People Behind the Roulette X	50
Jim Bready	A Few Words About This Picture	55
Chris Hakkaart	Nestler Electronic Calculators	56
Clark McCoy	Annual Financial Report for the Oughtred Society for 2023	64

Vol. 33, No. 2, 2024
Author	Title	Page No.
Jim Bready	Note From the Editor	1
Robert De Cesaris	Note from the President	2
David Rance	In Memoriam, Robert Adams	5
Eamonn Gormley	The ARRL Lightning Calculators	6
Jose G. Fernandez	Demegraph 13: Measuring and Calculating	18
W Richard Davis	The Victoreen Health Physics Slide Rule	32
Mike Syphers	Fermi's Golden Slide Rule	36
Eamonn Gormley	Unraveling the K&E Mystery Rules	42
Mike Syphers	A French Connection to a K&E Mystery Rule	54
Chris Hakkaart	Insects and Birds Favorable Flowers	58

Vol. 34, No. 1, 2025
Author	Title	Page No.
Jim Bready	Note From the Editor	1
Robert De Cesaris	Note from the President	2
In Memoriam, Dick Rose	Robert De Cesaris	4
Karl Kleine	In Memoriam, Gunter Kugel	5
Karl Kleine	In Memoriam, Bernhard Korte	6
Wayne Harrison	John F. Morrison and the Morrison Radio Engineer's Slide Rule	7
Alistair Pearson	Faber-Castell and the Variable Tschetwert	17
Eamonn Gormley	Coil Winding Inductance Calculators	19
Robert A. James	A Notation System for Slide Rule Operations	38
Bibb Cain	The Martin Space Vehicle Designer vs. The Martin Space Rule for Rocket Booster Design	42
Andries de Man	Logarithmic Mean Temperature Difference	57
Jim Bready	The Cercle Horometrique by Claude Givaudan	63
Clark McCoy	Annual Financial Report for the Oughtred Society for 2024	64

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