The artillerist's manual and British soldier's compendium

Note 54 — PART XII. MATHEMATICS. (continued 2)

Reading edition

3 inch cube full of air floats 1 lb. in water. 3 inch cube of water weighs 1 lb. in air. 1 cubic foot of water weighs 64 lb. in air. 1 ditto coal ditto 80 - 64 = 16 in water. 1 ditto sand ditto 95 - 64 = 31 in water.

A suit of clothes and a pair of boots, which weigh 7 lb. in air, when well saturated with water, only weigh in water 1 lb.

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