CATTLE. 223 



Returns for $1 worth of feed was. $1.24 



Net profit per cow yearly was 8.11 



10. Food cost of butter per pound was $0.143 



11. Food cost of butterfat per pound was 0.213 



Total number of herds 2,163 



Profitable 'herds 1,531 



Unprofitable herds 632 



Examine difference between the best and poorest herds in 

 the following summary : 



1. In order that the student may not draw wrong inferences from 

 the data and summary, it may be explained here that the exact 

 difference due to certain variations in condition, type and feed of 

 herds cannot be determined. These figures only serve to show 

 that there are certain controlling factors that dominate. 



