Welch's Improved American arithmetic : adapted to the currency of the United States : to which is added a concise treatise on the mensuration of planes and solids / compiled by Oliver Welch ; improved and illustrated with questions adapted to the rules, for the use of schools and academies, by an experienced teacher.
|Main Author:||Welch, Oliver.|
Portland, Me. : Sanborn, Sherborne & Co., 1841, c1834.
> Early works to 1900.
On cover: 1842.
xxii, -218 p. :
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