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Show WEIGHTS AND MEASURES, Troy Weight. 24 grains=l pwt. 12 ounces=l pound. 20 pwt.=l ounce. Used for weighing gold, silver and jewels. Apothecaries' Weight. 20 grains=l scruple. 8 drams=l ounce. 3 scruples=l dram. 12 ounces=l pound, Avoirdupois Weight. 27 11-32 grains=l dram. 4 quarters=l cwt. 16 drams=l ounce. 2,000 lbs.=l short ton. 16 ounces=l pound. 2,240 lbs.=l long ton. 25 pounds=l quarter. Dry Measure. 2 pints=l quart. 4 pecks=l bushel. 8 quarts=l peck. 36 bushels=l chaldron. Liquid Measure. 4 gills=:l pint. 31>2 gallons=l barrel. 2 pints=l quart. 2 barrels=l hogshead. 4 quarts^l gallon. Long Measure. 12 inches=l foot. 40 rods=l furlong. 3 feet=l yard. . 8 furlongs=l stat. mile. 53^ yards=l rod. -j 3 miles=l league. Mariners' Measure. 6 feet=l fathom. 5,280 feet=l stat. mile. 120fathoms=l cable 1'gth. 6,085 f.eet=l naut. mile. 7% cable lengths=l mile. S q u a r e Measure. 144 Sq. inches=^l sq. foot. Gunters's chain=22 yds. 9 sq. f eet=l sq. yard. 10 sq. chains=l acre. 30V4 sq. yds.=l sq. rod. 640 acres=l sq. mile. 40 sq. rods=l rood. 272^4 sq. i t . = l sq. rod. 4 roods=l acre. 43,560 sq. ft.=l acre. Surveyors' Measure. 7.92 inches=l link. 4 rods=l chain. 25 links==l rod. 10 square chains or 160 square rods=l acre. 640 acres=l sq. mile. 36 sq. miles (6 miles square)=l township. Cubic Measure. 1728 cubic in.=l cu. ft. 128 cu. ft.=l cord (wood). 27 cubic ft.=l cubic yd. 40 cu. ft.=l ton (ship'g) 2,150.42 cubic inches=l standard bushel. 231 cubic inches-1 standard gallon. 1 cubic foot=abouf four-fifths of a bushel. THE INTERNATIONAL METRIC SYSTEM OUTLINED. = H - o sItY1 J 9»c s «e •0 <cJ 2 < a a w« HS w2 *s 0 ~ « 0 0 „ -c w 2? z <» O S u « a 1 <0« • u 0 t> £ 0 0 V 0 IS 3 O O 0c e- - - Z -~ ~z ~ E '~~~ ~z. *z. *2 = - • ~ ~z\ - ~ - *E - ' "«" -^ 2 JZ ~ C O The scale shown is just one decimeter long (1 dm.). It forms the tenth part of one meter (1 m.), just as one dime forms the tenth part of a dollar. It is seen to be divided into ten centimeters (10 cm.), each of ten millimeters (10 mm.), just as the dime is divided into ten cents, each of ten mills. A meter is roughly a yard (1.1 yards). 1000 meters make one kilometer (1 km.), which is about % mile. A cube of one decimeter edge has a volume of one liter, which is roughly one quart. A liter, therefore, contains 10 x 10 x 10- 1000 cubic centimeters (1000 cc.) A cubic decimeter or liter of water weighs 1000 grams (1000 gm.)=l kilogram(1 kg.), which is roughly 2 pounds (2.2 lbs.). A cubic centimeter of water therefore weighs 1 gram. A cubic meter measures about % cord, and 1 cubic meter of water weighs 1000 kilograms(1000kg.) or 1 metric ton, which is roughly equal to 1 long ton. Prefixes used in the Metric System: Milli- 1-1000 or 0.001 Centi- 1-100 or 0.01 Deci- 1-10 or 0.1 as in American currency. Hecto- 100 Kilo- 1000 |
