80 



MASS. EXPERIMENT STATION BULLETIN 251 



Figure 2. — Net Kelation between Other Credits than Market Eggs iind Labor 

 Return per Bird, 1927. 



LABOR RETURN 

 PER BIRD 



DOLLARS 



2 3 



OTHER CREDITS — 



4 



DOLLARS 



The height of the bars represents the average trend of the relationship. Each 

 additional dollar of other credits per bird was related to 35 cents increase in labor 

 return per bird. 



Table 6. Net Differences in Labor Return per Bird Associated with 

 Differences in Other Credits than Market Eggs per Bird.* 



''With other factors studied held constant at their average values. 

 (See footnote, Table 4, p. 79.) 



