MAR I APR. I MAT | JPNE | JPLY AUO 



60 

 51) 

 40 



30 

 20 



10 











60 

 6 

 40 

 30 



20 



10 



OATS 



Ju 



BARRET 



COfid 



U_L 



TOBACCO 



Uii 



1 



■ lilt I 



MAR. | APR. | MAY | JPME 



Liii 



Jj 



\L 



JULY I AUO. I SEPT. I OCT. I NOV. 





DEC. I JAN. FEB. 



[60 

 50 



40 

 30 

 20 

 10 



Figure i. — Distribution of man labor on io acres of oats, 15 acres of barley, 

 30 acres of corn, and 4 acres of tobacco on a farm near Madison, Wisconsin, 

 in 1910. 



