1896.] MICROSCOPICAL JOURNAL. 345 



6. The amount of the yeast spores present is a sort of 

 measure of the amount of the lesion ; the more tlie dis- 

 ease the more the yeast. 



6. It can be applied often and harmlessly. 



8. It is common sense in principle, as it treats of causes, 

 while tuberculin treats only with results, influencing 

 causes not one particle. 



9. Even if time shows that the writer has overestimated 

 the value of this test, it is the best means of detecting 

 tuberculosis and pre-tuberculosis in man and kine. 



V. IMPORTANCE OF SUB.TECT. 



It is of importance to have healthy kine, but we do not 

 believe all the sensational reports as to the communica- 

 tion of tuberculosis to man from cows, for if true we 

 should almost all be dead. The evidence is overwhelm- 

 ing that tuberculosis comes from food, in excess and long 

 continued, which either before or after ingestion under- 

 goes the aceti acid fermentation. It is not the place here 

 to enter into this, but it may suffice to say tha* food of 

 kine or man undergoing the alcoholic and vinegary fer- 

 mentation is most favorable for tubercle. The ordinary silo 

 seems to be the most favorable method to obtain such food. 

 The fact that tuberculosis in cows is most prevalent 

 where ensilage, brewers" grains and forced feeding are 

 used ; the fact that bovine tuberculosis has only come into 

 prominence since such feeds have been used ; the facts 

 that alcoholic and vinegar yeast are found in abundance 

 in silo food, and are found in the blood of tuberculous 

 kine ; the fact that hogs kept on distillery swill contracted 

 tuberculosis, all these show that the farmer must take 

 other views than those that now obtain. The farmer to- 

 day is like the man in Pilgrim's Progress, pouring water 

 on a fire that will not go out because some one behind 

 him is pouring on oil ; killing tuberculous cattle and 

 feeding the newly liought kine with sour foods will not 



