The Dozenal Society of America

The Society is a voluntary nonprofit educational corporation, organized for the conduct of research and education of the public in the use of base twelve in calculations, mathematics, weights and measures, and other branches of pure and applied science.

Duodecimal Bulletin:

About the Bulletin
Archive Index
Pictorial Synopses
About the Archive

British (Pitman) Formatting

This section contains documents which use the Issac Pitman numerals and formatting of our Sister Society, the Dozenal Society of Great Britain.

Simply click the thumbnail (the icon) on the left to download the full article in PDF form. Click the Newhall number for articles extracted from the Duodecimal Bulletin or other dozenal publications to download the entire archived original issue. Example: Ralph Beard’s original “Why Change?” article begins in Vol. 4 No. 3 at page ii and has a Newhall number of db043r2.

Visit the Duodecimal Bulletin Digital Archive

db38206

“A Brief Introduction to Dozenal Counting”
Prof. Gene Zirkel, 1995, db38206.
The most popular DSA download! Prof. Zirkel describes the origins of our base ten system, why dozenal is superior to decimal as a number base, and some dozenal basics.

db31315

“Fundamental Operations in the Duodecimal System”
by Prof. Jay Schiffman, 1982, db31315 & db32204.
A highly recommended, thorough explanation of the four basic operations (addition, multiplication, division, and subtraction) in base twelve. Prof. Schiffman rigorously walks us through how one computes in dozenal, using decimal as an analogy to the dozenal processes.

ABriefIntro

“Decimal-Dozenal Conversion Rules”
Prof. Gene Zirkel and others, 2005.
This document offers rules and examples for converting decimal numbers to dozenal and vice versa. The material is partially drawn from pages *19-*20 of the Manual of the Dozen System.

Visit the Duodecimal Bulletin Digital Archive. Revisit this page from time to time to read new or remastered articles espousing dozenal as the ideal civilizational number base.

This page revised Wednesday 30 November 2011.