160 Bulletin 225. 



the course of the disease in the beginning and in the fatal cases, but 

 the com^e of the disease in the cases that appear to recover needs yet 

 to be determined ; and we need also to know how such animals shall 

 be handled with safety to themselves and to others. Vaccination or 

 immunization of cattle against tuberculosis is now being advocated, 

 but before our cattle owners accept such recommendations they must 

 be assured by carefully conducted experiments that the methods are 

 genuine and that the results will be satisfactory. 



The millions of dollars invested in cattle in New York State and the 

 importance of the cattle industry to the general welfare of the State, 

 demand that no effort should be spared to secure the most perfect 

 knowledge of tuberculosis and also of other serious animal diseases. 

 From the very nature of the case this information cannot be forth- 

 coming without ample opportunities for investigation. We must 

 supplement the laboratory and stable work with actual field work on 

 a farm or farms that are devoted to these particular purposes. 



