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Dozenal Society of America
Promoting base twelve and alternative base mathematics
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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 63z (75d) | Vol. 32z (38d) No. 3 | Year 1199z (1989d) ▶️



Click to view PDF

Editor: Dr. Patricia Zirkel

Cover Title: Constitution and By-Laws of the Dozenal Society of America

Contents:

  • Schedule, 1989 Annual Meeting
  • Constitution of the Dozenal Society of America
  • By-Laws of the Dozenal Society of America
  • Not True! | Jean Kelly
  • In Memoriam — Charles W. Trigg
  • Consecutive-Digit Integers | Charles W. Trigg
  • A Solution | Charles Ashbacher
  • The Farmyard | A Puzzle
  • 2B or not 2B, That is the Question | Gene Zirkel
  • Questions about a Dozenal Slide Rule
  • Using the Dozenal Clock: A Pedagogical Device | Gene Zirkel
  • Dozenal Jottings
    • Don Hammond (DSGB Secretary)
    • Rae Elsa | numerals
    • New Members: Brian Dean, Doris Demarest
  • Indian Dozenalists?
  • Why Change?
  • Counting in Dozens