Page:Appleton's Guide to Mexico.djvu/133

Labor (a cultivated field).—A square containing 1,000,000 square varas, or 177 acres.

Texas Measure.—League and labor, 20,000,000 square varas, or 4,605 acres.

To find the number of acres in a given number of square varas, divide by 5,046, fractions rejected.

THE ENGLISH AND FRENCH SYSTEMS OF WEIGHTS AND MEASURES COMPARED.

The unit of the metric or French system of weights and measures is the metre, which is equal to 39.37 inches.

The Measures of Length are:

1	millimetre	=	.03937	inch.
1	centimetre	=	.3937	"
1	decimetre	=	3.937	inches.
1	metre	=	39.37	"
1	decametre	=	32.809	feet.
1	hectometre	=	19.8842	rods
1	kilometre	=	.6213	mile.
1	myriametre	=	6.2138	miles

Measures of Surface.

1 square centimetre = .155 square inch. 1 square decimetre = 15.5 square inches. 1 square metre or $\scriptstyle {\left.{\begin{matrix}\ \end{matrix}}\right\}\,}$ = $\scriptstyle {\left\{{\begin{matrix}\ \end{matrix}}\right.}$ 10.764 square feet 1 centare = 1.96 square yard. 1 square decametre or $\scriptstyle {\left.{\begin{matrix}\ \end{matrix}}\right\}\,}$ = $\scriptstyle {\left\{{\begin{matrix}\ \end{matrix}}\right.}$ 3.954 square rods. 1 are = .0247 acre. 1 square hectometre, or 1 hectare = 2.471 acres. 1 square kilometre = .3861 square mile.

Measures of Volume.

1 cubic centimetre = .061 cubic inch. 1 cubic decimetre or $\scriptstyle {\left.{\begin{matrix}\ \end{matrix}}\right\}\,}$ = $\scriptstyle {\left\{{\begin{matrix}\ \end{matrix}}\right.}$ .0353 " 1 litre = 1.0567 liquid quart. 1 cubic metre, or 1 stere = 35.3165 cubic feet.