Leonard's New and Time-Saving Method for Subtractions of Fractions, with Many Corollaries on Simple Numbers Deduced from the Fractional Treatise. John H. Leonard.
Leonard's New and Time-Saving Method for Subtractions of Fractions, with Many Corollaries on Simple Numbers Deduced from the Fractional Treatise

Leonard's New and Time-Saving Method for Subtractions of Fractions, with Many Corollaries on Simple Numbers Deduced from the Fractional Treatise

Sacramento: 1883. 71pp. 12mo. Original tan printed wrappers. Minor wear to wrappers, spine ends chipped. Small ink stamp on rear cover; small ink stamp on title page verso. Ink corrections throughout text, otherwise clean. Very good. Item #2170

Handy little volume designed to cut in half the time it takes to calculate fractions. The author stresses that he has discovered these new rules for arithmetic, which, if properly applied, are sure to make one's calculations easier. Together with the rules, the author supplies examples of fractions with the answers, noting the way in which the rule is to be used. This particular copy bears the stamp of the Copyright Office of the Library of Congress dated 1908, indicating two copies received, and the volume seems to have been annotated with edits in a very authoritative red pen. We locate no copies in OCLC, which may indicate the the book was less of a runaway success than the author might have hoped.

Price: $650.00

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