APPENDIX

TABLE I. THE METRIC SYSTEM

=

“ centi

1. Length. The unit of length is the meter (39.37 in.).

10 millimeters (mm.)=1 centimeter (cm.).
10 centimeters =1 decimeter (dm.).

10 decimeters =1 meter (m.).
1,000 meters

= 1 kilometer (km.). Note that the prefix “milli- ” means 0.001, as mill=0.001 dollar;

means 0.01, as cent=0.01 dollar; “ deci-" means 0.1 as dime=0.1 dollar. “ Kilo-" means 1,000. 2. Square Measure, or Area. 100 square

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

=1 sq. decimeter (sq. dm.). 100 square decimeters

=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).
1,000 cubic centimeters

=1 cubic decimeter (cu. dm.). 1 cubic decimeter

=1 liter (1.) 10 liters

=1 dekaliter (dl.). 10 dekaliters

1 hectoliter (hl.). 10 hectoliters

=1 kiloliter (kl.). 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.).
10 centigrams =1 decigram (dg.).

10 decigrams 1 gram (g.).
1,000 grams

= 1 kilogram (kg.). 1,000 kilograms =1 metric ton.

=

TABLE II. EQUIVALENTS 1. Length.

1 centimeter=0.3937 in.
1 meter =39.37 in. =3.28 ft.
1 kilometer = 1,000 m.=0.6214 mile.
1 inch

=2.54 cm.
1 foot =0.3048 m.
1 mile =1.6094 km.

2. Area.

1 sq. cm. =0.155 sq. in.
1 sq. m. = 10.764 sq. ft. = 1.196 sq. yd.
100 m. square=10,000 sq. m. = 1 hectare
1 sq. km.

=0.385 sq. mile.

2.47 acres.

3. Volume.

1 cu. cm.=0.061 cu. in.
1 cu. m. = 35.315 cu. ft.
1 liter = 1,000 cu. cm. = 1.0567 qt. (U. S.).

4. Weight.
1 gram

= 15.4324 grains.
1 kilogram

=1,000 grams=2.2046 lb.
1 metric ton

= 1,000 kg.=2 204.6 lb.
1 short, or net ton =2,000 lb.
1 long, or gross ton =2,240 lb.
1 grain

=0.0648 gram.
1 ounce (avoirdupois) = 28.35 grams.
1 ounce (troy)

=31.1 grams.

TABLE III. DENSITIES OF SOME SUBSTANCES

*

1.75 2.7 13.596 8.57 1.42 0.926 0.942 0.918 0.873 1.83 21.5 0.865 1.4 10.57 0.97 2.03 1.854 7.29 0.999 1.000 0.958 1.026 1.00 0.64 0.86

Apples
Beans (dry)
Beef (round)
Beef (sirloin)
Bread
Butter
Candy
Cheese
Chicken
Cornmeal
Eggs
Fish (salmon)
Milk
Mutton (leg).
Oatmeal
Oysters.
Peanuts
Pork (fresh)
Potatoes (white)
Potatoes (sweet)
Rice
Strawberries
Sugar
Tomatoes
Walnuts (English)
Wheat .

83.2
12.6
68.2
60.0
35.3
10.5

3.0
30.2
72.2
15.0
73.8
63.6
87.0
61.8

4.7

28.3
24.4

9.2
14.9
21.6

3.6 18.3 15.1

0.3 3.1 1.2 1.0 1.1 3.0 0.5 4.2 1.4 1.4 0.8 1.4 0.7 0.9 2.0 2.0 2.0 1.0 1.0 0.8 1.0 0.6

35.5
2.0
3.8
10.5
13.4

4.0
19.0
7.1

315 1,615

805 1,200 1,215 3,410 1,785 2,070

540 1,645

721 965

325 1,140 1,850

GLOSSARY