When the price is an aliquot part of a shilling.

RULE.

Divide the given number by the aliquot part, and the quotient is the answer in shillings, which reduce into Founds, as before.

When the price is a part, but not an aliquot part, of a shilling.

RULE.

Divide the given number by some aliquot part of a shilling, and then consider what part of the said aliquot part the rest is, and divide the quotient thereby; and the last quotient, together with the former, will be the answer in shillings, which reduce into pounds, as before.

When the price is any number of shillings under 20.

RULE.

1. When the price is an even number, multiply the given number by of it, doubling the first figure to the right hand for shillings, and the rest are pounds.

2. When the price is an odd number, find for the greatest even number, as before, to which add

of the given number for the odd shillings, and the sum is the answer.

5. 37cwt. 2qrs. 14lb. at 71. ros. 9d. per cwt.

Ans. 2831. 118. 11÷d.

TARE AND TRETT.

TARE AND TRETT are practical rules for deducting certain allowances, which are made by merchants and tradesmen in selling their goods by weight.

Tare is an allowance made to the buyer for the weight of the box, barrel, or bag, &c. which contains the goods bought, and is either at so much per box, &c. at so much per cwt. or at so much in the gross weight.

Trett is an allowance of 4lb. in every 104lb. for waste, dust, &c.

Cloff is an allowance of 2lb. upon every 3cwt.

Gross weight is the whole weight of any sort of goods, together with the box, barrel, or bag, &c. that contains them.

Suttle is the weight, when part of the allowance is deducted from the gross.

Net weight is what remains after all allowances are made.

CASE

CASE I.

When the tare is a certain weight per box, barrel, or bag, &c.

RULE.

Multiply the number of boxes, or barrels, &c. by the tare, and subtract the product from the gross, and the remainder is the net weight required.

EXAMPLES.

1. In 7 frails of raisins, each weighing 5cwt. 2qrs. 5lb. gross, tare 23lb. per frail, how much net?

2. In 241 barrels of figs, each 3qrs. 19lb. gross, tare

tolb. per barrel, how many pounds net ?

Ans. 22413.

3. What is the net weight of 14 hogsheads of tobacco, each 5cwt. 2qrs. 17lb. gross, tare 1oolb. per hhd. ?

CASE II.

Ans. 66cwt. 2qrs. 14lb.

When the tare is a certain weight per cwt.

RULE.

Divide the gross weight by the aliquot parts of a ewt. contained in the tare, and subtract the quotient from the gross, and the remainder is the net weight.

EXAMPLES.

*It is manifest, that this, as well as every other case in this rule, is only an application of the rules of proportion and practice

EXAMPLES.

1. Gross 173cwt. 3qrs. 17lb. tare 16lb. per cwt. how much net?

2. What is the net weight of 7 barrels of pot-ash, each weighing 201lb. gross, tare Being at 1olb. per cwt. ?

Ans. 1281lb. 6oz, 3. In 25 barrels of figs, each 2cwt. 1qr. gross, tare 16lb, per cwt. how much net? Ans. 48cwt. 24lb.

CASE III. .....

When Trett is allowed with Tare.

RULE.!

Divide the suttle weight by 26, and the quotient is the trett, which subtract from the suttle, and the remainder is the net weight.

EXAMPLES.

1. In 9cwt. 2qrs. 17lb. gross, tare 37lb. and trett as usual, how much net?

2. In 7 casks of prunes, each weighing 3cwt. 1qr. 5lb. gross, tare 17 lb. per cwt. and trett as usual, how much

net?

Ans. 18cwt. 2qrs. 25lb. 3. What