246 FARM AND SCHOOL PROBLEMS. 



One of the gravest responsibilities that rests upon the teach- 

 ers and other officials of the common schools today is the 

 care and protection of the health of the twenty-five million 

 school children of the United States. 



The study of the effects of bacteriology in agriculture should 

 go farther than the effects of bacteria on plant life. It should 

 include the study of the effects of bacteria on the public health. 



There should be medical inspection of schools. 



To this end the following bulletins are recommended for the 

 use of teachers : 



UNITED STATES DEPARTMENT OF AGRICULTURE, WASHINGTON, D. C. 



Circular 153, Bureau of Animal Industry. 

 Farmer's Bulletin No. 540, The Stable Fly. 

 Farmer's Bulletin No. 473 Tuberculosis. 



Dairy Problems. 



OUTLINE FOR STUDY. 



Important points to be studied in improving a dairy herd : 



1. The individual members of the herd. 



2. The yearly cost of feed per cow. 



3. The yearly production of milk per cow. 



4. The yearly production of butter or butterfat. 



5. Returns for each dollar's worth of feed. 



6. Yearly cost of milk and butterfat. 



7. Food cost of milk and butterfat. 



8. Cows showing greatest profit. 



Bookkeeping. 



There is no part of farming that requires more careful 

 records and accounts to insure the greatest success than dairying. 



In the barn there should be a card of sufficient size in a con- 

 venient place for posting the ration for reference by employees. 

 There should be scales at suitable locations for weighing cows 

 and milk at stated intervals, and sheets for recording weights. 



