CASE 12.
When the price and quantity are of several denominations,

RULE.
Multiply the price of one by the whole numbers of the
quantity, and take parts for the rest of the said quantity.
LESSON 63.

LESSON 64. 5 cwt. 3qrs. 14lb. sugar at|

12 cwt. 2qrs. Tilb. at £3 £1 2s.6d. a hundred.

14 0

14 0 561b. of cwt.|£1 2 6 1 cwt.||56|b. cwt. |£ 3 5 cwt.

12

TARE AND TRET. In this Rule we must observe six things, viz. The Gross weight, the Tare, the Tret, the Suttle, the Cloff, and the Neat* weight.

EXPLANATION. 1. The Gross weight is the whole weight of the goods with the hogshead, the barrel, the box, the chest, &c. or whatever contains the merchandise, all being weighed together.

2. Tare is an allowance made to the purchaser for the weight of the hogshead, barrel, box, &c.

3. Tret is an abatement of 4lb. on 104, being the 26th part, allowed for dust, waste, &c.

4. Suttle is the name of the weight after part of the allowances are deducted from the gross.

5. Cloff is an allowance to the purchaser, of 2lb on every 3 cwt.

6. Neat weight is what remains after all allowances are deducted from the Gross.

CASE 1.
When the tare is so much in the whole.

RULE. Subtract the tare from the gross the remainder is neat.

LESSON 1. What is the neat weight of 16 hogsheads of tobacco each weighing 5cwt. Iqr. 19lb. gross; tare in the whole, 1600lb.

Answer, 72cwt. Iqr. 20lb,

DIRECTIONS. Multiply 5cwt. Iqr. 19lb. by 16, or by 4 and by 4; the product will be the whole gross. Reduce 1600lb, tare into hundreds, quarters and pounds. subtract this from the gross, the remainder will be neat, cwt. qr. lb.

Ib.
5
1
19

28)1600(57qr. 41b.
140

14 cwt. 21

20

200 1 qr.
196

1 lb. tare.

4

2

4

24 gross.

4 tare

20 neat.

CASE 2.
When the Tare is at so much per box, barrel, bag, &c.

RULE. Multiply the Tare of one barrel by the namber of barrels, &c., subtract the product from the gross, the remainder will be neat.

LESSON 2. In 14 hogsheads of sugar, weighing in the whole 89 cwt. 3 qrs. 17 lbs. gross; tare 100 lbs. on each hogshead, how much neat weight;

Ans. 77 cwt. I qr. 17 lbs.

CASE 3.
When Tare is at so much per cent.

RULE. Divide the gross by the aliquot parts of a hundred weight, subtract the quotient from the gross, and the remainder will be neat; but, if the tare be not an aliquot part, then say:

As 112 lbs. gross,

are to the tare per cent.;
So is the number of pounds gross,
to the tare required.

LESSON 3. What is the neat weight of 12 casks of rice, each 7 cwt. 1 qr. 10 lb. gross; tare 16 lb. per cent. ?

Ans. 75 cwt. 1 qr. 26 lb. 14 oz.
cwt, qr. lb. oz.
7 1 10 0 one cask.

12 casks.
Ib.
16 488 0 8

gross.
12 2 92 tare.

75 1 26 14 Answer.

LESSON 4. In 9 barrels of potash, each 400 lb. gross, tare 12 lb. per cent., how much neat weight? Ans. 3214 lb. 5 oz. 400*Ib. 1 barrel. alb.G. Ib.T. lb.G. 9.barrels.

112 12 :: 3600

12

112)43200(385 lb. tare.

[Continued.