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487
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Frederik Wellmann
A. MS.
MATHEMATICS (MS 1-278)
Mathematics, numerical Notation, notation and analysis (see also Decimal system; Quantity; Secundal system; Sextal system), Secundal system of enumeration
pp. 1-2; plus a folded sheet ("Calc. of Table of Secundal Logarithms")
u
56
n.p.
MATHEMATICS / NUMERICAL NOTATION AND ANALYSIS
yes
