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DABOLL'S

SCHOOLMASTER'S ASSISTANT.

ARITHMETICAL TABLES.

Numeration Table.

Pence Table.

9 8 7 6

9 8

Hundreds of Millions:

Tens of Thousands.
∞∞ Hundreds of Thousands.
486976Thousands.

∞∞Tens of Millions.
∞∞ Millions

66vQQs Hundreds.

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6 5 4

3

8

7

9

8

7 6

5 4 5

9

8 7 6
9 8 7

make

4 farthings 1 penny, d

9 8 12 pence, 1 shilling, s 920 shillings, 1 pound, ..

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120|132|144|

12 | 24 | 36 | 48 60 72 84 96 108

To learn this Table: Find your multiplier in the left hand column, and the multiplicand a-top, and in the common angle of meeting, or against your multiplier, along at the right hand, and under your multiplicand, you will find the product, or answer.

2. Troy Weight.

24 grains (gr.) make 1 penny-weight, marked 20 penny-weights, 1 ounce,

12 ounces,

pwt. lb.

Oz.

1 pound,

3. Avoirdupois Weight.

1 ounce,

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1 pound,

lb.

qr.

1 hundred weight,
1 ton,

ewt.

T.

16 drams (dr.) make

16 ounces,

28 pounds, 1 quarter of a hundred weight,

4 quarters,

20 hundred weight,

By this weight are weighed all coarse and drossy goods, grocery wares, and all metals except gold and silver.

4. Apothecaries Weight.

20 grains (gr.) make

3 scruples,

8 drams,

12 ounces,

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Apothecaries use this weight in compounding thei

medicines.

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This measure is applied to grain, beans, flax-seed, salt,

oats, oysters, coal, &c.

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All brandies, spirits, mead, vinegar, oil, &c. are mea sured by wine measure. Note.-231 solid inches, make a gallon.

8. Long Measure.

'S barley corns (b. c.) make 1 inch, marked

12 inches,

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3 miles,

69 statute miles,

in.

ft.

yd.

fur.

m.

lea.

1 rod, pole, or perch, rd.

1 foot,

1 yard,

1 furlong,

1 mile,

1 league,

1 degree, on the earth.

360 degrees, the circumference of the earth.

The use of long measure is to measure the distance of places, or any other thing, where length is considered, without regard to breadth.

N. B. In measuring the height of horses, 4 inches make 1 haad. In measuring depths, six feet make 1 fathom, or French toise. Distances are measured by a chain, four reds long, containing one hundred links

9. Land, or Square Measure.

144 square inches make

9 square feet,

30 square yards, or 2724 square feet,

40 square rods,

4 square roods,

640 square acres,

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10. Solid or Cubic

1728 solid inches make
40 feet of round timber, or 2
50 feet of hewn timber,
128 solid feet or 8 feet long,

4 wide, and 4 high,

1 square foot.

1

1 square yard.

square

rod.

1 square rood.
1 square acre.
1 square mile.

Measure.

1 solid foot.

1 ton or load.'

1cord of wood.

All solids, or things that have length, breadth and depth, N. B. The wine gallon are measured by this measure. contains 231 solid or cubic inches, and the beer gallon, 282. A bushel contains 2150,42 solid inches.

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1 month,

4 weeks,

13 months, 1 day and 6 hours, 1 Julian year,

mo.

yr.

Thirty days hath September, April, June, and November, February twenty-eight alone, all the rest have thirty-one. N. B. In bissextile, or leap year, February hath 39 days.

12. Circular Motion.

60 seconds() make

60 minutes,

30 degrees,

1 minute,

1 degree,

1 sign,

12 signs, or 360 degrees, the whole great circle of the Zodiac.

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