Online Encyclopedia

AVOIRDUPOIS

Online Encyclopedia
Originally appearing in Volume V03, Page 66 of the 1911 Encyclopedia Britannica.
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AVOIRDUPOIS, or AvERDUPOIS (from the French avoir de pois, goods of weight), the name of a system of weights used in Great Britain and America for all commodities except the precious metals, gems and medicines. The foundation of the system is the grain. A cubic inch of water weighs 252'458 grains. Of this grain 7000 now (see WEIGHTS AND MEASURES) make a pound avoirdupois. This pound is divided into 16 oz., and these ounces into 16 drachms. Avoirdupois Weight. Drachm, r6=ounce, 16=pound, r4=stone, 2=quarter, 4=hundred, 20=ton. 27'3 grains 437'5 7000 98,000 196,000 grs, 112 lb 2240 lb.
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