Oughtred Society  

Slide Rule Info
Beginners Guide
Archive of Collections
Classic SRs
Rarities Gallery
Slide Rules of the
   Major Makers

OS Slide Rule Ref Manual
Links Library
Long Scale SRs
Hyperbolic SRs
History of SRs
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In Memoriam
Slide Rule Fun

About the OS
Journal (JOS)
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About the Oughtred Society Web Site.

Design and Standards

The goal for these Web pages is to conform to major standards that facilitate both maintenance and usability. For maintenance the Web pages are coded using XHTML 1.0 standards, using Cascading Style Sheets (CSS), and Server Side Includes (SSI).

Photo Credits

Photo credits or sources are listed by Web page, then by order of images on the page, in a condensed format.

Home Page

  • Charpentier in header: Clark McCoy.
  • Table with circular rules: Jim Cerny
  • Table with mix of rules and docs: Jim Cerny
  • Reference Manual cover: Robert Koppany

History Page

  • William Oughtred: unknown.
  • Thacher: Jim Cerny
  • Golden Gate Bridge: Tim Tiebout
  • Apollo 11 LEM: NASA

Meetings Page

  • Bob Otnes: Jim Cerny.

Membership Page

  • Credits at bottom of that page.

Patents Page

  • Nystrom calculator: Patent 7961.


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last modified December 14, 2013