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 =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; 

 "centi-" means 0.01, as cent = Q.Ql 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.) = l 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 (hi.). 



10 hectoliters = 1 kiloliter (kl.) . 



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



water at 4C. weighs 1 kilogram. 

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

 10 centigrams =1 decigram (dg.). 



10 decigrams = 1 gram (g.). 



1,000 grams =1 kilogram (kg.). 



1,000 kilograms = 1 metric ton. 



459 



