Logistic logarithms

See under Logistic.
certain logarithmic numbers used to shorten the calculation of the fourth term of a proportion of which one of the terms is a given constant quantity, commonly one hour, while the other terms are expressed in minutes and seconds; - not now used.

See also: Logarithm, Logistic

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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