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To find the sum of two numbers from the above Table. Look for one of them in the top line, and for the other in the left hand column: the sum will be found in the square, which is underneath the one and in the same line with the other.

To find the difference of two numbers from the above Table. Look in the left hand column for the less, and in the same line with this for the greater; the difference will be found at the head of the column in which the greater is.

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2

4

6

8 10 12 14 16 18 20 22 24

6 18.20
3 6 7 12 15 18 21 24 27 30 33 36
4 8 12 16 20 24 28 32 36 40 44 48
5 10 15 20 25 30 35 40 45 50 55 60

6

48

54 | 60 | 66 | 72

12 18 24 30 36 | 42
14 | 21

7

77 | 84

28 35 42 49 | 56 63 70 71
8 16 24 32 40 48 56 64 72 80 88 96

9
10 20 30 40 50 60 70 80 90 100 110 120
11 22 33 44 55 66 77 88 99 110 121 132

9 | 18 | 27 | 36 45 54 63 72 81 90 | 99 108

12 24 36 48

60 72 84 96 108 120 132 144

To find the product of two numbers from the above Table. Look in the top line for one of them, and in the left hand column for the other; the product will be found in the square underneath the former, and in the same line with the latter.

To find the quotient of a number not greater than 144 diviiled by a number

not greater than 12 from the above Table. Look in the left hand column for the divisor, and in the same line with it for the dividend or the number next less than the dividend, the integral quotient will be found at the head of the column in which this number is found.

IlI. TABLE OF SQUARES AND CUBES.

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IV. MEASURES OF MONEY.

£. . d. A groat

0 0 4 A half crown = 0 2 6 A crown

0 5 0) A guinea..

1 A noble

0 6 8 48 = 12 = 1

An angel

0 10 0 960 = 240 = 20 = 1

A mark

0 13 4 A moidore = 1 7 0

shillings

Its pounds

SR Spence

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Ñ ounces

300 drams

spunod z

oz.

OZ.

= 1

gr. dwt.

Ib.
gr. scr. dr.

Ib. 24 1

20 1 480 20

60 =

3 5760 = 240 = 12 = 1

480 = 24 = 8

5760 = 288 = 96 = 12 = 1 Troy Weight is used for weighing Apothecaries' Weight is used for gold, silver, jewels, liquor, &c. and prescriptions. The grain, ounce, in philosophical experiments. and found are the same as in Tros

Weight.
VII. AVOIRDUPOIS WEIGHT.

5 drams

ounces

spunod z

quarters

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dr. oz. 1b.

qr. cwt.
ton. lb. stone

qr. cut. ton. 16 1

14 = 1 256 = 16 = 1

28 = 2 = 1 7168

448
= 28 = 1

112 =

8 = 4 = 1 28672 = 1792 = 112 = 4 = 1

2240 = 160 = 80 = 20 = 1 573440 = 35840 = 2240 = 80 = 20 = 1 Ub. Av. = 7000 Troy grains.

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

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furlongs

F. miles

leagues

in ft.

po.

ch. fur. mi. lea. 12 36 3

1 198 161

1 792 66

22
4

1 7920 660

220

40 10 63360 5280 1760 320 80 8 190080 = 15840 = 5280 = 960 240 = 24 = 3 = 1 1 chain = 100 links. The pole is called also a rod, or perch.

X. CLOTH MEASURE.

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quarters

llll
Finches 56-nails
square
square
feet

1 4

quarters = 1 English ell 6 quarters = 1 French ell 3 quarters = 1 Flemish ell

36 = 16

1

XI. SUPERFICIAL OR SQUARE MEASURE.

square,
yards

square
o poles

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sq. ft.

sq. yd.

ac.

sq.
144

1
1296

9 39204

2721 1568160 = 10890 6272640 = 43560

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16 sq. po.

= 1

sq. chain 1 acre

= 10000 sq. links 10 sq. chains = 100000 sq. links 2727 sq. ft. = 1 sq. rod

X11

CUBIC OR SOLID MEASURE.

cubic

inches

cubic

cubic
yards

cnb. in. cub. ft. cub.yd.
1723 =

40 cub. ft. = a load of rough timber 50 cub. ft. = a load of squared timber 42 cub. ft. = a ton of shipping

46656 = 27 = 1

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1

2 = 32 16 8 = 64 32 16 8

1 128 64 32 16

2 = 1 256 128 = 64 32

4 = 2 = 1280 640 = 320 = 160 = 40 = 20 = 10 = 5 = 1 2560 = 1210 = 640 = 320 = 80 = 40 = 20 = 10 = 2

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NAMES OF THE CALENDAR MONTHS.

..

January has
31 days

July has...

31 days
February
28

August

31
March
31

September. 30
April
30

October

31
May.
31

November. 30
June
30

December ... 31
In Leap year February has 29 days.

Leap year occurs every fourth year; but one in every 400 years is omitted.

To find whether a year be a Leap year, divide by 4; if there be no remainder, the year is Leap year, unless the number of the year be a number of centuries divisible by 4. Thus 1852, 1856, and 1900 are Leap years ; but 2000 is not.

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7. Frankfort-on-the-Maine. 4 Creutzers 1 Batze 15 Batzen

1 Florin ii Florins

1 Rix dollar 148 Batzen = £1 Sterling

8. Austria.
4 Pfennings 1 Creutzer
69 Creutzers 1 Florin
11 Florin

1 Rix dollar 9 FI, 50 Cr. £1 Sterling

9. Austrian Italy. 5 Centisimi 1 Soldo Austr 20 Soldi Austr.= 1 Lira Austr. 29 Lir. 20 Cent.= £1 Sterling

10. Naples. 10 Grani

1 Carlino 10 Carlini

1 Ducato 6 Duc. 10 Gr. £1 Sterling

11. Spain. 34 Maravedi 1 Real of Plate il Reals 1 Ma.= 1 Ducat of Plate 8 Reals

1 Dollar of Plate 4 Dollars

1 Pistole of Plate 1 Dollar 3 Shillings sterling

12. Portugal.
400 Reas

i Crusado
1000 Reas 1 Milrea
1 Milrea

48. 9fd. sterling

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