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FEET, INCHES, AND SECONDS.

F. I. Multiply 9 8

6 By ng 9 3

(multipker 67 11 6 =prod. by the feet in the ng 3 4 6 Editto by the inches.

2 5 1 6 = ditto by the seconds.

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How many square feet in a board 16 feet 9 inches long, and 2 feet 3 inches wide ? By Duodecimnls..

By Decimals.
F. I.

F. I.
16 9

16 9=16,75 feet 2 3

2 3=2,25

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TO MEASURE LOADS OF WOOD.

RULE. Multiply the length by the breadth, and the product by the depth or height, which will give the content in solid feet; of which 64 make half a cord, and 128 a cord.

EXAMPLE.

How many solid feet arr. contained in a load of wood, 7 feet 6 inches long, 4 feet 2 inches wide, and 2 feet s inches high?

7 ft. 6 in.=7,5 and 4 ft. 2 in.=4,167 and 2 ft. 3 in= 2,25; then, 7,5X4,167 31,2525x2,25=70,318125 solid feet, Ans.

But loads of wood are commonly estimated by the foot, allowing the load to be 8 feet long, 4 feet wide, and then 2 feet high will make half a cord, which is called 4 feet of wood; but if the breadth of the load be less than 4 feet, its height must be increased so as to make half a cord, which is still called 4 feet of wood.

By measuring the breadth and heighth of the load, the content may be found by the following

RULE. Multiply the breadth by the height, and half the product will be the content in feet and inches.

EXAMPLE.

Required the content of a load of wood which is 3 feet 9 inches wide and 2 feet 6 inches high. By Duodecimals. By Decimals.

F. in.
3 9

9,75
2 6

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94 6 9,375

F. in. Ans. 4 8 3

4,6875=4 87, or half a cord and

81 inches over. Tho foregoing method is concise and easy wo those who are well acquainted with Duodecimals, but the following Table will give the content of any load of wood, by inspection only, suficiently exact for common practice, which will be found very convenient.

A TABLE of Breadth, Height, and Content. Brendth. ||Height in feet.

Inches. ft. in. | 1|2|3|4|1|2|3| 4 5 6 7 8 9 10 11 2 6 15|30|4560|| 1 2 4 5 6 7 9/10/11/12/14

7 1631 4762|| 1 3 4 5 6 8 9.10 12 13 14 8 16!32 48/64 3 4 5 7 8 9 11 12 13 15 9 17 33 49/66|| 1 3 4 6 7 8 9/11 12 14 15 10 17|34|51|68 3 4 6 7 910111 13 14 16

11 18|35|53|70|1234| 6 7 9 10 12 13 15 16 3 0 18|36|5472 3 5 6 8 9111|12/14/15/17

1 ||19|37|56|74 35 | 6 8 9|11|12|14|16/17 2 19 38 5776 3 5 6 8 10 11|13 14 16/17 -3 19739/59|78|| 2 | 35 | 7 8 10 11 13 15 16 18 4 20/40/60/80l 23 517 8 10 12 13 15 17118 5 21 41/62821 357 8 110 12 14 16/17 19 6 21/42/63 84 4517 9 11 |12|14|16|18|19 7 ||22|43|64|86 4 5 7 9 11 13 14 16 18 20 8 22/44/66/88 461 1 9 11 13 15 17|18/20 9 23|45|68|90|| 2 4 6 7 9 11 13 15 17 19121 10 ||23|46|69|92| 2467 9 12 13 15 17 19/21

11 23 47|70|94|| 246 8 10 12 14 16 18 20 22 4 0 |24|48|72|96|| 2141.6 8 10 12 14 16 18 20 22

TO USE THE FOREGOING TABLE.

First measure the breadth and height of your load to the nearest average inch; then find the breadth in the left hand column of the table; thep move to the right on the same line till you come under the height in feet, and you will have the content in inches, answering the feet, to which add the content of the inches on the right and divide the sum by 12, and you will have the true content of the load in feet and inches.

NOTE.—The contents answering the inches being always small, may be added by inspection.

EXAMPLES. 1. Admit a load of wood is 3 feet 4 inches wide, and 2 feet 10 inches high ; required the content.Thus, against s ft

. 4 inches, and under 2 feet, stands 40 inches; and under 10 inches at top, stands 17 inches: then 40+ 17=57 true content in inches, which divide by 12 gives 4 feet 9 inches, the answer.

l. The breadth being 3 feet, and height 2 feet 8 inches, required the content.

Thus, with breadth foet o inches and under 2 feet

inches ; and under 8 inches, stands 12 inches : now 36 and 12, make 48, the answer in inches ; and 48:12 4 feet, or just half a cord.

3. Admit the breadth to be 3 feet 11 inches, and height 3 feet 9 inches; required the content.

Under 3 feet at top, stands 70 ; and under 9 inches, is 18 : 70 and 18, make 88–12=7 feet 4 inches, or 7 ft. 1 qr. 2 inches, the answer.

TABLE I. Showing the amount of £1, or $1, at 5 and 6 per cent.

per annum, Compound Interest, for 20 years Yrs. 15 per cent.6 per cent.)

Yrs.15

per cent. 6 per cent. 1 1,05000 1,06000 11 1,71034 1,89829 2 1,10250 1,12360 12 1,79585 2,01219 3 1,15762 1,19101 13 1,88565 2,13292 4 1,21550 1,26247 14 1,979932,26090 5 1,27628 1,33822 15 2,07893 2,39655 6 1,34009 1,41851 16 2,18287 2,54727 ng 1,40710 | 1,50363 17

2,29201 2,69277 8 1,47745 1,59384 18 2,40661 2,85433 9 1,55132 1,68947 19 2,52695 3,02559 10 | 1,62889 | 1,79094 | 20 | 2,65329 3,20713 VII. The weights of the coins of the United States.

puta gr. *** Eagles,

11

Standard
Half-Eagles,

15

Gold.
Quarter-Eagles,

198
Dollars,

17 8 Half-Dollars,

8 16

Standard
Quarter-Dollars, 4 8

Silver,
Dimes,

1 17%
Hall-dimes,

204 Cents,

8 Half-Cents,

4 8

,

16

} Copper

The standard for id.coin is 11 parts pure gold, and 1 part alloy. the alloy to consist of s..ver and copper.

The standard for silver coin is 1485 parts fine to 173 parts alloy-the alloy to be wholly copper.

ANNUITIES.
TABLE II.

TABLE III. Showing the amount of Showing the present

61 annuity, forbornell worth of Al annaity, for 31 years or under,|| to continue for si at 5 and 6 per cent.l years, at 5 and 6 per

compound interest. cent. compound int. Yrs. 5

6
5

6 1 1,000000 1,000000 0,952381 0,943396 2 2,050000 2,060000 1,8594101,833393 3 3,152500 3,183600|| 2,723248 2,673012 4 4,310125 4,374616 3,545950 3,465106 5 5,525631 5,6371934,329477 4,212364 6 6,801913 6,975319|| 5,075692 4,917324 7 8,142009 8,393838|| 5,786278 5,582381 8 9,549109 9,897468|| 6,463213 6,209794 9 11,026564 11,491316|| 7,1078226,801692 10 12,577892 18,180770|| 7,721735) 7,360087 11 14,206787 14,971643|| 8,306414 7,886875 12 15,917126 16,869942 8,863252 8,383844 13 17,712982|18,882130|| 9,393573 8,852683 14 19,598632 21,015066|9,898641 9,294984 15 21,57856423,275969|10,379658 9,712249 16 23,657492 25,672528|10,837769 10,105895 17 25,840366 28,212380 11,274066 10,477260 18 28,132385 30,905653|11,689587 10,827603 19 30,539004/33,759992||12,085321 11,158116 20 33,065954/36,785592|12,462210-11,469921 21 35,719252|39,992727||12,821153 11,764077 22 38,505214 43,392291|13,163003/12,041582 23 141,430475 46,995828||13,488574/12,303380 24 44,501999 50,815578|13,798642|12,550357 25 47,727099 54,864512 14,093944 12,783356 26 51,11345459,15638214,375185 13,003166 27 54,669126163,705765|14,643034 13,210534 28 58,402583 68,528112||14,898127 13,406164 29 62,32271273,639798|15,141073/13,590721 30 66,438847|79,058186||15,372451 13,764831 31 70,760790184,801677||15,592810113,929086

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