Seal of the DSA
Dozenal Society of America
Promoting base twelve and alternative base mathematics
Support the DSA
Follow Us
Icon for DSA's X Icon for DSA's Facebook Icon for DSA's RSS
Share This Page
Icon for sharing via X Icon for sharing via Facebook Icon for sharing via email
The Dozenal Society of America
The DSA is a voluntary, nonprofit education corporation, organized for the conduct of research and education of the public in the use of dozenal (also called duodecimal or base-twelve) in calculations, mathematics, weights and measures, and other branches of pure and applied science.

The Duodecimal Bulletin

◀️ Issue: Whole Number 3Az (46d) | Vol. 22z (26d) No. 1 | Year 1183z (1971d) ▶️



Click to view PDF

Editor: Henry Churchman

Contents:

  • Annual Meeting of 1970 and Meeting of the Board
    • Proceedings of 1182 September 18;450
    • Editor’s Resignation
    • Associate Editor’s Report
    • Treasurer’s Report
    • Election of Officers
    • Election of Board Members
    • New Business
    • Further Meeting DSA
    • New Business
    • Winchester Declarations of 1970
    • Annual Award 1970: Kingsland Camp
  • Dozenal Measurement Today | Henry C. Churchman
  • More on Base Conversion Algorithms | A. Monroe and B. A. M. Moon
    • A Base Conversion Algorithm
  • Telephones | Henry C. Churchman
  • Surveying by Metes and Bounds | Gower N. Euston
  • Book Manufacturing and Duodecimals | Michael J. Sloboda
  • Dozenal Circular Slide Rule: Announcement
  • Metric Time clock Faces, Free on Request
  • Melodrama at the Old Homestead, Episode II
  • Editorial: Prodding the Lumberman | Henry C. Churchman
  • Tell It As It Is | John Jarndyce
  • Careful with Duodecimal Numerals | Lawrence Boythorn
  • Letters and Comments
    • Igor Colonna Valevsky
    • Tom B. Linton
    • Eugene M. Scifres
  • Intelligence Items | Capt. Herbert Stover
    • A Horse Watering Trough
    • USSR Salyut
    • Icebreaker Staten Island
    • National Conference on Weights and Measures
    • Argentina’s Long Tunnel
    • U.S. Metric Dollars in French Court
  • New Debt Ceiling | Henry C. Churchman
  • Charlie Brown’s Interest in Dozenals | Charles Schultz
  • Base-12 Updates Metric System | Henry C. Churchman
  • Counting in Dozens