acres 1 square mile.

Cubic Measure.--l,728 cubic inches 1 cubic foot. 27 cubic feet 1 cubic
yard, 128 cubic feet 1 cord (wood), 40 cubic feet 1 ton (shipping),
2,150.42 cubic inches 1 standard bushel, 268.8 cubic inches 1 standard
gallon, 1 cubic foot four-fifths of a bushel.

Metric Weights.--10 milligrams 1 centigram, 10 centigrams 1 decigram, 10
decigrams 1 gram, 10 grams 1 dekagram, 10 dekagrams 1 hektogram, 10
hektograms 1 kilogram.

Metric Measure.--(One milliliter--Cubic centimeter).--10 milliliters 1
centiliter, 10 centiliters 1 deciliter, 10 deciliters 1 liter, 10 liters
1 dekaliter, 10 dekaliters 1 hektoliter, 10 hektoliters 1 kiloliter.

Metric Lengths.--10 millimeters 1 centimeter, 10 centimeters 1
decimeter, 10 decimeters 1 meter, 10 meters 1 dekameter, 10 dekameters 1
hektometer, 10 hektometers 1 kilometer.

Relative Value of Apothecaries' and Imperial Measure.

Apothecaries'. Imperial.
pints ounces drams minims

1 gallon equals 6 13 2 23
1 pint equals 16 5 18
1 fluid ounce equals 1 0 20
1 fluid dram equals 1 2-1/2

Handy Metric Table.

The following table gives the equivalents of both the metric and common
systems, and will be found convenient for reference:

Approximate Accurate
Equivalent. Equivalent.
1 inch [length] 2-1/2 cubic centimeters 2.539
1 centimeter 0.4 inch 0.393
1 yard 1 meter 0.914
1 meter (39.37 inches) l yard 1.093
1 foot 30 centimeters 30.479
1 kilometer (1,000 meters) 5/8 mile 0.621
1 mile 1-1/2 kilometers 1.600
1 gramme [weight] 15-1/2 grains 15.432
1 grain 0.064 gramme 0.064
1 kilogramme (1,000 grammes) 2.2 pounds avoirdupois. 2.204
1 pound avoirdupois 1/2 kilogramme 0.453
1 ounce avoirdupois (437-1/2 grains) 28-1/3 grammes 28.349
1 ounce troy, or apothecary (480 grains) 31 grammes 31.103
1 cubic centimeter [bulk]