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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 2Bz (35d) | Vol. 15z (17d) No. 2 | Year 1175z (1961d) ▶️



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Editor: Ralph Beard

Contents:

  • Alamogordo
  • Publicity
  • Topsy-Turvy Magic Square | Clifford E. Dickinson
  • Remarks on the Meter and English Measures | Charles S. Bagley
  • Mental Squaring of Some Numbers | Tom B. Linton
  • New Symbols | Charles S. Bagley
  • Other Dozenal Symbols for Ten and Eleven | Tom B. Linton
  • Practices Deserving Universal Acceptance | Henry C. Churchman
  • Index, Duodecimal Bulletin, Volumes 10–15, 1956–1961
    • Index of Articles
    • Index of Persons
    • Subject Index