DISEASES OF CATTLE. 65 



lobular tissue. The smaller tubercles were more transparent, and 

 bad a grayisb color, having a firm organic cbaracter ; in tbe center 

 of one of tbe larger ones was to be seen caseous material. Tbe 

 broncbial lympb-glands were mucb enlarged ; inwardly disturbed 

 by many purulent and caseous centers ; bere and tbere lime-salts 

 were perceptible; tbe tuberculous centers extended prominently 

 above the cut surface of tbe gland. Tbe mesenteric and otber 

 glands presented a similar cbaracter. 



Tbe microscopical examinations of tbe tubercles gave tbe same 

 characteristics as those of man. 



Some of the experiments with tbe other animals mentioned 

 previously gave negative, while others were followed by positive, re- 

 sults. 



These and other more recent experiments prove that the milk 

 from cows complicated with tuberculosis is not only harmful, but 

 that it also contains elements of a specifically dangerous character ; 

 it is capable of generating elements of a similar character : it there- 

 fore bears the character termed infectious. 



While I will not go so far as to consider the above-noticed and 

 otber experiments as conclusive and unquestionable evidence that 

 the milk from tuberculous cows (and why not human mothers ?) will 

 at all times produce tuberculosis in young animals fed on the same, 

 yet, such is my confidence in the value of tbe experiments made 

 by Gerlacb and still later by others, that for myself I have no 

 doubt whatever that the milk from tuberculous cows and mothers 

 will, in the greater number of cases, generate tubercles in young ani- 

 mals when fed with sufficient quantities, and for a sufficient length 

 of time, to produce infection. 



The casual reader might perhaps fail to see tbe point to which 

 these conclusions necessarily lead us, viz., that if young animals 

 can be thus infected, what is there to prevent the same taking place 

 in babes brought up on the bottle f I do not wish to place myself 

 before the public as a visionary alarmist. 



Here are facts, however, induced from carefully executed ex- 

 periments, and by a man noted for bis exactness and trustworthiness 

 in other branches of researches. 



Bollinger has summed up the feeding experiments upon young 

 animals, with the milk in question, as follows: 



" Three pigs — one successfully, two doubtful. 



" Three calves — two successfully, one prematurely died. 



" One lamb — one successfully. 



" Two dogs — two negative results. 



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