420 



ELEMENTS OF AGRICULTURE 



TABLE 17 

 AVERAGE WAGES OF FARM LABOR 1 



1 Bureau of Statistics Bulletin No. 26. 



TABLE 18 

 RULES 



Measuring Grain. A bushel of grain contains approximately 

 f cubic feet. To determine the capacity of a bin, find the number 

 of cubic feet and multiply by |, or multiply by 8 and divide by 10. 



Measuring Ear Corn. It requires about two bushels of ear corn 

 to make one bushel shelled. To find the capacity of a crib, find the 

 number of cubic feet and multiply by f or >. 



Measuring Hay. The quantity of hay in a mow is very hard to 

 estimate accurately. The deeper the hay is, the harder it will be packed. 

 Some kinds of hay are heavier than others, the longer it stands the 

 more compact it becomes. Settled hay will usually weigh about five 

 pounds per cubic foot. Or, 400 cubic feet will weigh one ton. 



Measuring Land. The easiest way to calculate land measurements 

 is to figure 160 square rods as one acre. A strip one rod wide and 160 

 rods long, therefore, equals an acre, as does a strip four rods wide and 

 40 rods long, or eight rods wide and 20 rods long, etc. 



A surveyor's chain is four rods long. It is divided into 100 links, 

 so that all calculations are in decimals. Ten square chains equal one 

 acre. 



SQUARE MEASURE EQUIVALENTS 



Sq. in. Sq. ft. Sq. yd. Sq. rod Acre Sq. milo 



144= 1 



1,296= 9 = 1 



39,204= 272i= 30t= 1 



6,272,640= 43,560 = 4,840 = 160= 1 

 4,014,489,600=27,878,400 =3,097,600 =102,400=640= 1 



