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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 1Bz (23d) | Vol. Bz (11d) No. 2 | Year 116Bz (1955d) ▶️



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Editor: Ralph Beard

Contents:

  • Herbert Spencer 1820–1903
  • An Excerpt from Herbert Spencer
  • A Note about Powers of Numbers
  • Mathematical Recreations
  • Arithmocrypts
  • Index of Volumes 5–Ɛ
    • Index of Articles
    • Index of Persons
    • Subject Index
  • Counting in Dozens