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" TABLE. 24 grains (gr.) = 1 pennyweight, pwt. 20 pennyweights = 1 ounce, oz. 12 ounces = 1 pound, Ib. 1 Ib. = 12 oz. = 240 pwt. = 5760 grains. 136. Apothecaries' Weight is used by druggists and physicians in weighing medicines that are not liquid. "
First Lessons in Arithmetic, Oral and Written: Illustrated for Primary Schools - Page 121
by James Bates Thomson - 1882 - 144 pages
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The Child's Arithmetic ...

Ingram Cobbin - 1830 - 150 pages
...ounce 5 12 ounces one pound ffi This weight is for medicines. 19 Troy Weight. 24 grains (gr.) make 1 pennyweight pwt. 20 pennyweights 1 ounce oz. 12 ounces 1 pound Ib. This is used by goldsmiths to weigh gold, silver, jewels, &c. Cloth Measure. 4 nails (na.) make 1 quarter...
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Cobb's Explantory Arithmetick, Number Two: Containing the Compound Rules ...

Lyman Cobb - Arithmetic - 1836 - 228 pages
...jewellery, liquors, &c. The denominations are, Pound, Ounce, Pennyweight, and Grain. 24 grains, gr. make 1 penny-weight, pwt. 20 penny-weights - 1 ounce, oz. 12 ounces - - 1 pound, Ib. DRY MEASURE. This measure is used for grain, salt, coal, fruit, &c. The denominations are, Chaldron,...
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First Lessons in Arithmetic: Designed for Beginners

Charles Davies - Arithmetic - 1840 - 144 pages
...shillings - - 1 guinea. - i .. LESSON III. About Troy Weight. TABLE OF TROY WEIGHT. 24 grains, gr. make 1 pennyweight, - - pwt. 20 pennyweights - 1 ounce, - - - - oz. 12 ounces - - - 1 pound, - - - - Ib. 1 . How many grains are there in one pennyweight ? In two pennyweights ? In three pennyweights ? In...
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The Prussian Calculator: By which All Business Calculations are Performed by ...

Isaac A. Clark - Arithmetic - 1846 - 204 pages
...pounds=one hundred weight; but in business, 25 is the standard qr. V. TROY WEIGHT. 24 grains (gr.) - - =1 pennyweight pwt~ 20 pennyweights - =1 ounce, oz. 12 ounces - - —1 pound, Ib; VI, APOTHECARIES' WEIGHT. 24 grains (gr.) - - =1 scruple 3 3 scruples - - =1 drachm 3 8 drachms - -...
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An Elementary Arithmetic ...: Serving as an Introduction to the Higher ...

George Roberts Perkins - Arithmetic - 1846 - 266 pages
...parts, still called grains, being the least weight now in common use. TABLE. ' 24 grains gr. make 1 pennyweight, pwt. 20 pennyweights " 1 ounce, oz. 12 ounces " 1 pound, Ib. gr. pwt. 24= 1 oz. 480= 20= 1 Ib. 5760=240 = 12 = 1 . What substances are weighed by Troy weight? Repeat...
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An Elementary Arithmetic Serving as an Introduction to the Higher Arithmetic

George Roberts Perkins - Arithmetic - 1850 - 364 pages
...weight and value of English gold and silver coin are ai in the succeeding TABLE.* 24 grains gr. make 1 pennyweight, pwt. 20 pennyweights " 1 ounce, oz. 12 ounces " 1 pound, Ib. gr. pwt. 24= 1 oz. 480= 20= 1 Ib. 5760=240=12=1 What was the original of all weights used in England?...
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First Lessons in Arithmetic: Combining the Oral Method with the Method of ...

Charles Davies - Arithmetic - 1851 - 178 pages
...shillings in one guinea ? In two LESSON V. About Troy Weight. TABLE OF TROT WEIGHT. 24 grains, gr. make 1 pennyweight, - pwt. 20 pennyweights - 1 ounce, - - - oz. 12 ounces - - - 1 pound, - - - ib. 1 . How many grains are there in one pennyweight ? In two pennyweights ? In three pennyweights ? In...
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The National Arithmetic on the Inductive System: Combining the Analytic and ...

Benjamin Greenleaf - Arithmetic - 1857 - 452 pages
...gold, silver, jewels, and liquors ; and in philosophical experiments. • TABLE. 24 Grains (gr.) make 1 Pennyweight, pwt. 20 Pennyweights " 1 Ounce, oz. 12 Ounces " 1 Pound, Ib. gr. pwt. 24 = 1 oz. 480 = 20 = 1 Ib. 5760 = 240 = 12 = 1 NOTE 1. — Troy weight was introduced into...
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The National Arithmetic on the Inductive System: Combining the Analytic and ...

Benjamin Greenleaf - Arithmetic - 1858 - 456 pages
...gold, silver, jewels, and liquors ; and in philosophical experiments. TABLE. 24 Grains (gr.) make 1 Pennyweight, pwt 20 Pennyweights " 1 Ounce, oz. 12 Ounces " 1 Pound, Ib. gt. pwt. 24 = 1 ox. 480 = 20 = 1 Ib. 6760 = 240 = 12 = 1 NOTE 1 . — Troy weight was introduced into...
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A Mental Arithmetic Upon the Inductive Plan: Being an Advanced Intellectual ...

Benjamin Greenleaf - Arithmetic - 1858 - 186 pages
...will 32 yards of carpeting cost ? LESSON XX. TABLE OP TROY, OR MINT WEIGHT. 24 Grains (gr.) make 1 Pennyweight, pwt. 20 Pennyweights " 1 Ounce, oz. 12 Ounces " 1 Pound, Ib. NOTE. — This weight is used in weighing gold, silver, and jewels. 1. How many grains in 1 pennyweight?...
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