Avoirdupois Weight is used for weighing all commodities except gold, silver, and precious stones.

26. How many oz. are there in 16 dr.? How many in 80 dr.?

27. How many oz. are there in 68 dr. ?

28. In 3 oz. 9 dr. how many drams are there? 29. In 4 qr. 15 lb. how many pounds are there? 30. In 2 T. 12 cwt. 2 qrs. how many qrs. are there? 31. 89 lbs. is what improper fraction of a quarter? How many qrs.?

32. 89 lbs. is what fraction of a hundred weight? 33. What is the use of Avoirdupois Weight?

34. By what weight would you buy nails? hay? silver?

Apothecaries' Weight is used in mixing medicines, but not in selling them.

35. In 3 scruples how many grains are there? 36. In 3 dr. how many scruples are there?

lb.

37. 3 dr. 1 scruple 20 grains are how many time:: 22 grains?

38. 86 gr. is what improper fraction of 1? how many?

39. 99 3 is what fraction of a lb. ?

40. In of a lb. how many times 36 drams are there?

41. In of an ounce how many times 10 grains? 3224 42. What is the use of Apothecaries' Weight?

43. By what weight would you buy raisins? salts? pepper?

Cloth Measure is used in measuring cloths, &c.

44. In 3 yards how many quarters are there? 45. In 1 yd. how many nails are there?

46. At 5 dollars a yard, what will cost 2 qr. of broadcloth ?

3 na.

47. In 32 nails how many qr. are there? how many Fl. e.? how many E. e. ? how many Fr. e.?

48. How many inches are there in a yard of cloth? 49. What is the use of Cloth Measure?

Long Measure is used in measuring distances.

OBS. The circumference of the earth is measured in degrees of latitude. 60 geographical miles, or 69 English miles, form 1 degree, and 360 degrees form the whole circumference.

50. In 8 ft. 7 in. how many inches are there? 51. In 2 fath. 1 ft. 9 in. how many inches are there?

52. How many feet of line will reach the bottom in 93 fathoms of water, the deck of the vessel being 15 feet above the water?

53. A school-room is 2 rods 15 feet in length, and 24 rods in breadth; how much does the length exceed the breadth?

54. What is the use of Long Measure?

55. Bunker Hill Monument is 220 feet high; what is its height in inches? what is its height in yards?

56. Joseph lives of a mile from the school-house; if he steps 10 times in travelling each rod, how many steps will he take in going to school?

Square Measure is used in measuring surfaces.

TABLE.

144 Square Inches (sq. in.). 9 Square Feet

30 Sq. Yds., or 2721 Sq. Ft. 40 Square Rods

4 Roods

640 Acres

12

.1 Square Mile sq. m.

57. How many square inches are there in 2

sq.

in?

sq.

ft.

58. Change of a sq. ft. to sq. in., and add 6 sq. in. to it.

59. What will it cost to plaster a room containing 900 sq. ft., at 10 cents for every sq. yd. ?

60. What is the cost of 240 sq. rods of land, at $1000 an acre?

61. The District of Columbia, containing the city of Washington, is 10 miles square; how many square acres does it contain?

62. What is the use of Square Measure?

63. By what measure would you ascertain the distance from your home to the school-room?

64. By what measure would you find the size of your slate?

OBS. A square is 6 ft. long, 6 ft. wide, and 6 ft. deep, or 216 cub. ft. A perch is 1 ft. X 14 ft. X 16 ft., or 244 cub. ft.

65..67 cubic feet are equal to how many feet of wood?

66. How many cubic feet are equal to 1 cord of wood?

67. What is the price of 2 ft. of wood, at the rate of 9 dollars a cord?

68. What is the use of Cubic Measure?

Liquid Measure is used in measuring liquids.

OBS. The English wine gallon contains 231 cubic inches.

A pint of

In some places milk and malt liquors are sold by a measure which contains 282 cubic inches in a gallon. water is estimated to weigh a pound.

69. How many quarts are there in a barrel? 70. How many barrels are there in a hogshead? 71. How many gills are there in of 2 gallons?

72. Change 129 quarts to their value in barrels, gal lons, and quarts.

73. How many pounds of water can a boy carry in a pail holding 2 gallons?

74. What is the use of Liquid Measure?

Dry Measure is used in measuring coal, lime, fruit, and other goods commonly sold by heap measure.

75. In 48 pints how many pecks are there? 76. In 3 chaldrons of coal how many bushels are there?

77. What is the use of Dry Measure ?

78. By what measure would you buy potatoes? corn? oil? boards? ribbon ?

OBS. The solar year contains 365 days, 5 hours, 48 minutes, and 48 seconds, or nearly of a day more than 365 days. Every fourth year is therefore called leap year, and contains 366 days. The leap years are those which are exactly divisible by 4. A common month contains 4 weeks.

79. How many seconds are there in 3 min. 48 sec.? 80. In of a day how many hours are there? 81. In 37 days there are how many weeks? months? 82. What is the length of the solar year? leap year? 83. How can you tell which are the leap years

CIRCULAR MEASURE.

?

84. How many degrees are there in the circumference of the earth? in 1 of the circumference?