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.
101-20
Editor:
Ralph Beard
Associate Editor:
Volume:
10
Issue:
1
Whole Number:
20
Year:
1170
Subject:
“Roman Dumerals”; Churchman’s “Doremic" System of Weights and Measures
