414 



GENERAL SCIENCE 



sanitary and that the cows are in a healthy condition 

 (Figures 364/365). Tubercular cows mean infected milk 

 and danger to all who drink it. In progressive com- 

 munities the health authorities investigate dairy condi- 

 tions and test the milk at frequent intervals to see that 

 it is up to the proper standard of purity and richness. 



It is in the hot summer months when disease germs 

 multiply very rapidly and milk spoils quickly that the 



U. S. Dept. of Agriculture. 

 FIG. 365. A Clean, Well-lighted Dairy Barn. 



danger from tainted food is greatest, especially for babies, 

 because their food is largely milk. Steps are now being 

 taken throughout the country to supply fresh milk and 

 ice at either a very low cost or free, to those who are too 

 poor to furnish these necessities themselves. Under 

 these conditions the per cent of infant mortality is much 

 lower. 



