APPENDIX

TABLE I. THE METRIC SYSTEM

1. Length. The unit of length is the meter (39.37 in.). 10 millimeters (mm.) = 1 centimeter (cm.).

10 centimeters

10 decimeters

1,000 meters

Note that the prefix

"centi- "

milli- " means 0.001, as mill=0.001 dollar;

means 0.01, as cent=0.01 dollar; "deci- "

dime 0.1 dollar. "Kilo-" means 1,000.

2. Square Measure, or Area.

means 0.1 as

100 square millimeters (sq. mm.) = 1 sq. centimeter (sq. cm.)

100 square centimeters

100 square decimeters

= 1 sq. decimeter (sq. dm.).

=1 sq. meter (sq. m.).

3. Cubic Measure, or Volume. The unit of volume is the liter, which

is 1 cu. dm., or 1,000 c.c.

1,000 cubic millimeters (cu. mm.) = 1 cubic centimeter (c.c).

4. Weight. The gram is the weight of 1 c.c. water at 4° C.; 1 liter of water at 4° C. weighs 1 kilogram.

10 milligrams (mg.) = 1 centigram (cg.).