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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 50z (60d) | Vol. 2Az (34d) No. 1 | Year 1195z (1985d) ▶️



Click to view PDF

Editor: Dr. Patricia Zirkel

Cover Title: Dudley George spoke on Squares and Approximations at DSA Annual Meeting

Contents:

  • Annual Meeting of 1984 | John Impagliazzo, Ph.D., Secretary
    • Amending of Agenda
    • Secretary’s Report | Dr. John Impagliazzo
    • President’s Report | Prof. Gene Zirkel
    • Treasurer’s Report | Prof. James Malone
    • Editor’s Report | Patricia Zirkel
    • Awards Committee | Dr. Angelo Scordato
    • By-Law Committee Report | Dr. Angelo Scordato
    • Annual Meeting Committee
    • New Business
    • Nominating Committee
    • Presentations
      • R. Keith Kirby | National Bureau of Standards
      • Fred Newhall | language and efficient number symbols
      • Dudley George | Squares and Approximations
    • Evening Banquet
  • Board of Directors Meeting | John Impagliazzo, Ph.D., Secretary
  • Reminder: 1985 DSA Dues
  • Annual Award Presentation | Eugene “Skip” Scifres
  • Report from DSA Financial Committee
  • Have You Read... | Gene Zirkel
    • Government Accounting Office | costs and disadvantages of converting to Metric
  • Who We Are IV: Dudley George
  • Decimal/Duodecimal Palindromes | Mark Calandra
  • Reverse Notation Revisited | Gene Zirkel
  • Book Review | Fred Newhall
    • Metric Madness | J.W. Batchelder | Devin-Adair Publishers
  • Dozenal Jottings
    • Dr. Tony Glaser | suggested The Ascent of Mathematics
    • Tom Linton and Ralph Beard
    • Dr. Wilfred Herget
    • Dr. Tony Scordato
    • Kari Bornhorst
    • Richard Schrader
    • David Singmaster
    • Pertti Lounesto
    • jean Horn
    • Anthony Catania
    • Robert Foley
  • Why Change?
  • Counting in Dozens