Thomas Chapman Ciphering Book, 1769-1788 (bulk 1769-1772)1 vol., 34 cm., 21 leaves, with 42 pages of manuscript. The title page of this ciphering book is inscribed "Thomas Chapman / His Book of Arithmetic / Made in the Year of our Lord 1769". Chapman (1754-1795) was a son of the planter John Chapman, of Spotsylvania County, Virginia. Copied lessons include numeration, addition of integers, addition of money, addition of troy weights, apothecaries' weight, avoirdupois weight, cloth measure, liquid measure, dry measure, land measure, adding time, subtraction of sundries, multiplication, division, division of crops, and reduction. Most of the problems under the heading "division of crops" relate to tobacco. Though scattered notations date to as late as 1788, the arithmetical content was probably completed by the early 1770s. MSN/COL 9251-1.