The first lessons in numbers : an illustrated table book, designed for elementary instruction . * Note.—The exact weight of an Avoirdupois dram is 21^Troy grains. 84: TROY Troy Weight. Troy weight is used in weighing gold, silver,and jewels, and in philosophical experiments. LESSON LXXIX.(See Manual, Sec. L, Exercise VII.) 24 grains (gr.) make 1 pennyweight, pennyweights make 1 ounce. ounces make 1 pound. lb. 3-2 grains make 1 carat. k.

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Keywords: ., bookcentury1800, bookdecade1860, booksubjectarithmetic, bookyear1