64 STATE BOARD OF AGRICULTURE. 



2. Acquired. 



a. Devitalization. 



b. Hereditary predisposition. 



c. One attack of disease, 



d. Vaccines. 



IV. Serum Therapy — Bacterial Therapeutics. 



1. Diagnostic agents. 



2. Remedial agents. 



V. Disinfection and Antiseptics. 



1. Agents emoplyed. 



2. Determination of values. 



3. Methods. 



VI. Sanitary Studies. 



1. Water analysis. 



a. Methods. 



b. Interpretation of results. 



2. Water contamination and filtration. 



3. Sewage analysis. 



a. Methods of. 



b. Determination of values of micro-organisms. 

 . . 4. Sewage destruction beds and filtration. 



a. Aerobic. 



b. Anaerobic. 



c. Products. 



5. Ventilation. 



a. Currents as means of disseminatioi^. 



b. Filtration of air. 



c. Germ content of air. 



d. Methods of analysis. 



6. Foods. 



a. Poisonous. 



b. Infected. 



D. DAIRY. 



I. Milk Supply. 



1. Communicable diseases conveyed through milk. 



a. Kinds of micro-organisms. 



b. Avenues of transmission. 



c. Prevention. 



2. Environments of animal and conditions of milking. 



a. Stabling. 



b. Feeding. 



c. Milker. 



d. Utensils. 



3. Bacterial content of milk in udder. 



a. Non-pathogenic micro-organisms. 



b. Pathogenic micro-organisms. 



c. Conditions of growth in udder. 



d. Special fermentations (garget et cet.). 



