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Dear Members, The Oughtred Society is pleased to be co-hosting the International Meeting of Slide Rule Collectors - IM 2011 in conjunction with special events and displays at the MIT Museum. The meeting will be held September 22-25 at Le Meridien Hotel, Cambridge, MA, which is located within walking distance of the MIT (Massachusetts Institute of Technology) campus.

We have sold out of rooms at the preferred price at Le Meridien Hotel, however lodging is still available at a wide variety of hotels (including Le Meridien) that are located near MIT. A list of available hotels can be found on the:

Visiting MIT website, Where To Stay

IM2011 Attendees who have booked rooms at Le Meridien may modify their reservations by access the Meeting website:

Le Meridien Cambridge-MIT Reservations OS/IM Group

Members who wish to attend should complete an on-line registration form, available at the Oughtred Society's website:www.oughtred.org. by September 1 to obtain advance registration pricing. Those who register later will be charged an additional $10.00 registration fee. We ask that all members who wish to attend complete their registration no later than Sept. 15. Members may register by e-mail in advance and pay the registration fee at the door. Those who wish to register without paying the fee may do so by e-mailing Clark McCoy at:

oughtredsociety [at] comcast.net


Thursday, September 22-25, 2011


Le Meridien Cambridge - MIT
20 Sidney Street
Cambridge, MA 02139

The Schedule of Events is as follows:


5:30-7:00 PMMembers at invited to meet informally at Le Meridien for cocktails.

8:00-8:50 Registration, Breakfast, Meet & Greet
8:50-9:00 Welcome to IM 2011 (R De Cesaris)
9:00-9:30 Paper 1: Mathematical Foundations of the Slide Rule (J Pasquale)
9:30-10:00 Paper 2: German Roots of Some US Tables of Logarithms (K Kuhn)
10:00-10:15 Show & Tell Talks 1 & 2 (+5 min break)<
10:15-10:45 Paper 3: Abaci in the Old World and in the New (J McFarland)
10:45-11:15 Paper 4: The Peruvian-German Slide Rule Connection (R Hughes)
11:15-11:30 Show & Tell Talks 3 & 4
11:30-Noon Paper 5: Brewing Beer and the Collection of Taxes (T Wyman)
Noon-1:15 LUNCH
1:15-1:30 Show & Tell Talks 5 & 6
1:30-2:00 Paper 6: William Cox and His Contribution to K&E Technology (R Otnes)
2:00-2:30 Paper 7: The Unique Lawrence (D Rance)
2:30-2:45 Break for Snacks and Prepare to Leave for Harvard University
2:45-3:30 Transit Time to Harvard
3:30-4:30 Visit the Collection of Historical Scientific Instruments at Harvard University
4:30-5:00 Return to MIT Museum/Hotel
5:30-7:00 Exhibition Opening, Reception, Tour of MIT150
7:00 Dinner (on your own)
Recommended Spouse/Guest Activity - Boston Hop-On Hop-off Trolley Tour

The trolley tour features 18 points of interest in the greater Boston/Cambridge area. Trolleys run all day and riders can get on and off and spend as much or as little time as they wish at each point. This is a wonderful, easy, fun way to get an overview of Boston's many interesting sights and places.

8:30-9:00Breakfast, Meet & Greet
9:00-9:30 Paper 8: Spiral Slide Rules through the Centuries (E Chamberlain)
9:30-10:00 Paper 9: Pocket Watch Slide Rules (P Hopp)
10:00-10:15 Show & Tell Talks 7 & 8
10:15-10:45 Paper 10: The K&E Hudson 8 Slide Rule (C McCoy and F Adorney)
10:45-11:15 Paper 11: Aircraft Load Adjusters (R van Riet)
11:15-11:45 Paper 12: Danish Pig-Feeding Slide Rule (J McCarthy)
11:45-Noon Show & Tell Talks 9 & 10
Noon-1:15 LUNCH
1:15-1:30 Paper 13: Cones, Disks, Wheels, and Spheres for Area and Integration from Bavaria to Boston and Beyond (S Dreschler and B Haeberlin)
1:30-2:00 Paper 14: The Fuller Calculator Revisited: Early Fuller Examples Including the Very Short Life of the Fuller Small-Sized Calculator (R De Cesaris)
2:00-2:15 Show & Tell Talks 11 & 12
2:15-2:30 Break
2:30-3:30 Plenary Panel Discussion with Dr. Debbie Douglas
4:00-5:30 Swap Meet and Auction
6:30-9:00 Dinner Banquet

Recommended Spouse/Guest Activity - A Tour of the Museum of Fine Arts

Boston's Museum of Fine Arts has recently undergone an extraordinary and transformative expansion that has propelled it into the realm of the world's finest museums. The new wing is dedicated to Art of the Americas. The MFA is one of the most comprehensive art museums in the world, having more than 450,000 works of art.

Dr. Debbie Douglas will guide members through a back-door tour of the MIT Museum and its slide rule collection.

Event Registration

Meeting registration fee for members is $245.00. Member spouse fees are $125.00. Non-members joining the oughtred Society for the first time at this meeting should pay $295.00 (Meeting and OS membership). Add $10.00 if registering after September 1.

Conference registration costs include attendance to all activities at Le Meridien, all MIT-sponsored events, Breakfast and Lunch on Friday, Breakfast, Lunch and Dinner on Saturday, refreshments breaks during the conference, and a digital copy on disk of the proceedings. Hard copies of the proceedings will also be available for purchase at the meeting. Hotel room and any additional accommodations are not included and will need to be handled separately by the attendee. MIT is located in the heart of Historic Cambridge just a few short miles from Downtown Boston, one of America's earliest cities. From their Colonial roots to today's thriving communities, the Boston/Cambridge area is home to a wealth of cultural and education institutions. Both cities offer World Class shopping, sightseeing and recreational opportunities.

A summary of proceedings is listed in the IM2011 Announcement Rev03(.pdf)

We look forward to seeing you in Cambridge! .

Paying by PayPal:

Please indicate that you are registering for the IM2011 Meeting, September 22, 2011 and whether you will be joining the other get-to-gethers on Thursday, Friday, Saturday or Sunday. Upon receipt of your registration, we will send you an Email of acknowledgment. .




Or, Paying Directly by Check:

To pay by check, send your payment to:

The Oughtred Society
9 Stephens Ct.
Roseville, CA   95678

Printable Info

IM2011 Announcement Rev03(.pdf)


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last modified November 28, 2011