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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 17z (19d) | Vol. 8 No. 2 | Year 1168z (1952d) ▶️



Click to view PDF

Editor: George Terry

Contents:

  • Duodecimal Bibliography | Lewis Carl Seelbach and Ralph H. Beard
  • Duodecimal Chronology Prior to 1800
  • Duodecimal Mathematical Tables
  • Counting in Dozens