* By this are weighed gold, silver, jewels, and all liqours.

By this are weighed iron, lead, sugar, and all other articles of a gross nature.

An hundred weight is 112 pounds.

The apothecaries' pound and ounce are the same with the pound and ounce Troy. NOTE. This is the weight by which apothecaries mix their medicines; but they buy sell them by Avoirdupois weight.

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* Long measure is applied to things where length is considered, without regard to bread th.

† 60 geumetrical miles, or 69 and a half statute miles, make one degree of the earth's circle, and 360 degrees make a great circle of the earth.

NOTE. 4inches make a hand, and 5 feet a geometrical pace.

Square measure is applied to things which have length and breadth without regard to thick ness or depth.

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+ Cubic measure is applied to things which have length, breadth, and thickness. NOTE. A cube is a body consisting of six equal sides.

All distilled spirits, cider, vinegar, oil, &c, are sold by Wine Measure.

The beer gallon contains 282, and the wine gallon 231 cubic, or solid inches. sold by the beer quart.

Milk is

This measure is applied to corn, seed, fruit, roots, salt, sand, coal, oysters, and all dry goods.

According to our callender,§ 365 days make a year; but the true solar year, or the time in which the earth performs one complete revolution round the sun, is 365 days, 5 hours, 48 minutes, 57 seconds. For this reason one day is added to February every fourth year, which is called Bissextile or leap year.

Thirty days hath september
April, June, and November;

February twenty eight alone,
And all the rest have thirty-one.

COMPOUND SUBTRACTION.

COMPOUND SUBTRACTION teaches to find the difference between two sums of several denominations, by taking the less from the greater.

RULE 1st Place the two sums in such a manner, as that each denomination may stand directly under that of the same name; the greater sum being above the less. Subtract the less sum from the greater, beginning with the lowest denomination, and set down the difference.

RULE 2d. Borrow in all denominations, the same, for which you carried, in Compound Addition.

NOTE. In case of borrowing, you may subtract the lower number from the number borrowed, and to the difference, add the upper number; which is the same as adding the number borrowed to the upper number.

The Federal Currency is of such nature, that all questions respecting it, whether in Addition, Subtraction, Multiplication, or Division, are wrought in the same manner as those of whole numbers.