The Instructor's Assistant. Being a Compendium of Arithmetic, Both Practical and Theorical, in Four Parts, ... by John Ross, School-master in Portsmouth.

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The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to insure edition identification:
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British Library

T223055

With a final errata leaf.

London : printed by Joseph Smith, for Messrs. Hawes and Co., [1765]. xxxv,[1],386,[2]p. : ill. ; 12°