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By this weight are weighed all things of a coarse or drossy nature; and all metals, except gold and silver.

Apothecaries' Weight.

20 grains make 1 scruple,.

3 scruples

8 drams

12 ounces

1 dram,

1 ounce troy,

1 pound,

marked

gr. Scer

dr.

028

lb.

Apothecaries mix their medicines by this weight, but they buy and sell them by avoirdupois weight.

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1 hogshead,

hhd.

By this measure, all distilled spirits, perry, mead, vinegar, cider, and oil, are sold.

Ale or Beer Measure.

2 pints

4 quarts

36 gallons

34 gallons

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1 hogshead,

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Note The Wire gallon contains 231 cubic inches,

and the Ale gallon 282 cubic inches.

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COMPOUND ADDITION.

Compound Addition teaches to find the sum of two or more numbers of several denominations.

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1. Place the numbers so that those of the same denomination may stand directly under each other, and draw a line beneath them.

2. Begin at the lowest denomination, and add the 'figures in that denomination, as in simple addition ; then, as many of the next greater denomination as are contained in that sum, carry to the next denomination, and set down the remainder: proceed in the same manner to the last denomination, which must be added, as in simple addition.

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In the first example, beginning with the farthings, I add them together, and find the sum to be 6 farthings, which are 1 penny, and 2 farthings over; I set down the farthings, and carry 1 to the next denomination, adding it and all the figures in that place together, "which make 28 pence, or 2 shillings and

pence; I set down 4, and carry 2 to the next denomination, adding it and the figures in that place, as

25

before, which make 41 shillings, equal to 2 pounds 1 shilling: I then set down 1, and carry 2 to the last place, or denomination of pounds, where I add and carry, as in simple addition.

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Land, or Square Measure.

Acres. rood. rod. yd. ft. in.

rods. yd. ft.

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