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NOTES.-1. The standard bushel of the United States, is the Winchester bushel of England. It is a circular measure, 18 inches in diameter and 8 inches deep, and contains 2150 cubic inches, nearly.

2. A gallon, Dry Measure, contains 268 cubic inches.

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3. In 372 bushels, how many pints?

4. In 5 chaldrons 31 bushels, how many pecks?

5. In 17408 pints, how many bushels ?

6. In 4220 pints, how many chaldrons ?

VI. UNITS OF WEIGHT.

I. AVOIRDUPOIS WEIGHT.

201. By this weight all articles are weighed, except gold, silver, jewels, and liquor.

199. What is measured by Liquid Measure? What are its denominations? Repeat the Table. What are the units of the scale? What is the standard wine gallon?

200. What articles are measured by Dry Measure? What are its denominations? Repeat the Table. What are the scales? What is the standard bushel? What are the contents of a gallon?

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1 = 20 = 80 = 2000 = 32000 = 512000: SCALES.-The scales, beginning with the least unit, are, 16, 16, 25, 4, and 20.

NOTES.-1. The standard Avoirdupois pound is the weight of 27.7015 cubic inches of distilled water.

2. By the old method of weighing, adopted from the English system, 112 pounds were reckoned for a hundredweight; but now, the laws of most of the States, as well as general usage, fix the hundredweight at 100 pounds.

3. A ton of coal at the mines, is reckoned at 2240 lb., but at the yards, at 2000 lb.

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3. In 5 T. 8 cwt. 3 qr. 24 lb. 13 oz. 14 dr., how many drams? 4. In 28 T. 4 cwt. 1 qr. 21 lb., how many ounces?

5. In 2790366 drams, how many tons?

6. In 903136 ounces, how many tons?

7. In 3124446 drams, how many tons?

8. In 93 T. 13 cwt. 3 qr. 8 lb., how many ounces?

9. In 108910592 drams, how many tons?

10. What will be the cost of 11 T. 17 cwt. 3 qr. 24 lb. or hay, at half a cent a pound? How much would that be a ton?

11. What is the cost of 2 T. 13 cwt. 3 qr. 21 lb. of beef, at 8 cents a pound? How much would that be a ton?

II. TROY WEIGHT.

202. Gold, silver, jewels, and liquors are weighed by Troy Weight.

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SCALES.-The scales, beginning with the lowest unit, are, 24, 20, and 12.

NOTE.-The standard Troy pound, is the weight of 22.794377 cubic inches of distilled water. It is less than the pound Avoirdupois.

201. For what is Avoirdupois Weight used? How is the Table to be read? How can you determine, from the second Table, the value of any unit in units of the lower denominations? Name the scales.

NOTES.-1. What is the standard Avoirdupois pound?

2. What is a hundredweight by the English method? What is a hundredweight by the United States method?

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3. In 25 lb. 9 oz. 20 gr., how many grains?

4. In 6490 grains, how many pounds?

5. In 148340 grains, how many pounds?

6. In 117 lb. 9 oz. 15 pwt. 18 gr., how many grains?

7. In 8794 pwt., how many pounds?

8. In 6 lb. 9 oz. 21 gr., how many grains?

9. In 1 lb. 1 oz. 10 pwt. 16 gr., how many grains ?

10. A jewel weighing 2 oz. 14 pwt. 18 gr., is sold for half a dollar a grain: what is its value?

III. APOTHECARIES' WEIGHT.

203. This weight is used by apothecaries and physicians in mixing their medicines. But medicines are generally sold, in the quantity, by avoirdupois weight.

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202. What articles are weighed by Troy Weight? What are its denominations? Repeat the Table. What are the scales? What is the standard Troy pound?

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SCALES. The scales, beginning with the lowest unit, are 20,

3, 8, and 12.

NOTE.-The pound and ounce are the same as the pound and ounce in Troy weight.

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3. In 27 b 93 63 10, how many scruples?

4. In 94 b 113 13, how many drams?

5. In 8011 scruples, how many pounds?

6. In 9113 drams, how many pounds?

7. How many grains in 12 tb 93 73 20 18 gr.? 8. In 73918 grains, how many pounds?

VII. UNITS OF TIME.

204. TIME is a part of duration.

The time in which the

earth revolves on its axis is called a day. The time in which

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