The Writings of Thomas Jefferson, Vol. 7 (of 9) / Being His Autobiography, Correspondence, Reports, Messages, Addresses, and Other Writings, Official and Private

by Thomas Jefferson

[(7.)] The Eng. rood contains 10,890 sq. feet = 104.355 feet sq.

[(8.)] The Measures, Weights, and Coins of the Decimal System, estimated in those of England, now used in the United States.

1. MEASURES OF LENGTH.

	Feet.	Equivalent in English measure.
The point,	.001	.011 inch.
The line,	.01	.117
The inch,	.1	1.174, about 1⁄7 more than the Eng. inch.
The foot,	1.	} 11.744736	} about 1⁄48 less than the English foot.
		} .978728 feet,
The decad,	10.	9.787, about 1⁄48 less than the 10 feet rod of the carpenters.
The rood,	100.	97.872, about 1⁄16 less than the side of an English square rood.
The furlong,	1000.	978.728, about ⅓ more than the Eng. fur.
The mile,	10000.	9787.28, about 1 6⁄7 English mile, nearly the Scotch and Irish mile, and ½ the German mile.

2. SUPERFICIAL MEASURE.

	Roods.
The hundredth,	.01	95.69 square feet English.
The tenth,	.1	957.9
The rood,	1.	9579.085
The double acre,	10.	2.199, or say 2.2 acres English.
The square furlong,	100.	22.

3. MEASURE OF CAPACITY.

	Bushels.	Cub. Inches
The metre,	.001	1.62
The demi-pint,	.01	16.2, about 1⁄24 less than the English half-pint.
The pottle,	.1	162.005, about ⅙ more than the English pottle.
The bushel,	1.	{ 1620.05506862 { .937531868414884352 cub feet.
		about ¼ less than the middle sized English bushel.
The quarter,	10.	9.375, about ⅕ less than the Eng. qr.
The last,	100.	93.753, about 1⁄7 more than the Eng. last.

4. WEIGHTS.

	Pounds.	Avoirdupois.	Troy.
Mite,	.00001		.041 grains, about ⅕ less than the English mite.
Minim, or demi-grain,	.0001		.4101, about ⅕ lessthan half-grain troy.
Carat,	.001		.4101, about 1⁄40 more than the carat troy.
Double scruple,	.01		41.017, about 1⁄40more than 2 scruples troy.
Ounce,	.1	9375318684148	410.170192431
		84352 oz.	.85452 oz.
		about 1⁄16 less than the ounce avoirdupois.
Pound,	1.	9.375	.712101 lb.,
		.585957417759 lb.
		about ¼ less than the pound troy.
Stone,	10.	93.753 oz.	7.121
		5.8595 lb.
		about ¼ less than the English stone of 8 lbs. avoirdupois.
Kental,	100.	937.531 oz.	71.21
		58.5957 lb.
		about 4⁄10 less than the English kental of 100 lbs. avoirdupois.
Hogshead,	1000.	9375.318 oz.	712.101
		585.9574 lb.