عن الكتاب
Kislak Center for Special Collections, Rare Books and Manuscripts, LJS 386. 1250. Substantial sections from an illustrated treatise on the measurement of weight, with a historical introduction to theories of gravity and weighing in Greek and Arabic science; tables of densities of substances including metals, precious stones, solids, and liquids; and descriptions of different types of balances. 26 diagrams and 18 tables with a few marginal notes. A few catchwords have been added by later hands. Damage to edges of many leaves. Penn Libraries Catalog: go to Franklin