WEIGHTS, MEASURES, AND TEMPERATURES 



As the metric system of weights and measures and the Centigrade measure- 

 ment of temperatures are employed in scientific work, the following tables 

 showing the English equivalents of those in most frequent use are given for the 

 convenience of those not already familiar with these standards. The values 

 given are approximate only, but will answer for all practical purposes. 



Weight 



Measures of Length 



Kilogram 



kg. 



2| pounds 



Gram . . 



gm. 



15-J- grains av- 

 oirdupois. 



2 X 8 of an ounce 

 avoirdupois. 



Metric 



Kilometer 



Capacity 



Meter 



Liter . . 



1. 



Cubic cen- 

 timeter 



cc. 



61 cubic inches, Decimeter . . 

 or a little 

 more than 



1 quart, U. S. Centimeter . . 

 measure. 



of a cubic 



inch. 



Millimeter 



km. 



dm. 



English 

 Equivalents 



# of a, mile. 



inches. 



4 inches. 



t of an inch. 



The next table gives the Fahrenheit equivalent for every tenth degree Centi- 

 grade from absolute zero to the boiling point of water. To find the correspond- 

 ing F. for any degree C, multiply the given C. temperature by nine, divide by 

 five, and add thirty-two. Conversely, to change F. to C. equivalent, subtract 

 thirty-two, multiply by five, and divide by nine. 



Cent. 



Fahr. Cent. 



Fahr. Cent. 



Fahr. Cent. 



687 



Fahr. 



100 . 



. 212 



50 . . 



. 122 



. 



. 32 



- 50 . . . - 58 



90 . 



. 194 



40 . . 



. 104 



- 10 . 



. 14 



- 100 . . . - 148 



80 .> 



. 176 



30 . . 



. 86 



- 20 . 



. - 4 





70 . 



. 158 



20 . . 



. 68 



- 30 . 



. - 22 



Absolute zero 



60 . 



. 140 



10 . . 



. 50 



- 40 . 



. - 40 



- 273 . . . - 459 



