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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 22z (26d) | Vol. 11z (13d) No. 1 | Year 1171z (1957d) ▶️



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Editor: Ralph Beard

Contents:

  • The Annual Meeting
  • Bill Dwiggins
  • Annual Award for 1956 to Jean Essig
  • M. Essig's Acknowledgement
  • A Duodecimal Point Worth Making | Henry C. Churchman
  • Henry M. Parkhurst, Pioneer in Duodecimals, obituary by George S. Terry
  • Mathematical Sophism | Brother Louis Francis, F.M.S.
  • India and the Shrinking World
  • Time of Decision | Ralph H. Beard
  • Mail Bag
  • Counting in Dozens