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A PRACTICAL TREATISE ON DECIMAL ARITHMETIC.
Calvert, John.

A PRACTICAL TREATISE ON DECIMAL ARITHMETIC.

A Confab. Vulgar and Decimal Fraction Systems Compared. Showing the Advantages of the Decimal System, to suit the wants of the Mechanic and Craftsman in Daily Practice and Labour. ... N.d. c.[1890].
Slim 8vo. 56pp. + [iv] adverts. F.e.ps. lightly browned, blind embossed cloth with gilt title to upper board, some minor rubbing, spine lightly faded, lower board sl. watermarked.
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