172 
4. Feeding rabbits, details not given. Forty-eight rabbits fed; 2 
became tuberculous. Five cows examined; tubercle bacilli in milk 
of 1 (20 per cent). 
5. Feeding pigs. Ten pigs fed; 5 became tuberculous. 
6. Feeding calves. Twenty-one calves fed; 8 became tuberculous. 
B. Milk at random from Boston supply. 
1. Cover-glass examination ; 1 specimen out of 33 contained tubercle 
bacilli. 
2. Inoculation of rabbits. Three out of 25 rabbits became tuber- 
culous. (From the tables it appears that 3 of 13 specimens contained 
tubercle bacilli, although this is not stated in the text.) 
C. Of 19 calves bom of tuberculous cows, and autopsied within six 
days of birth, no evidence of tuberculosis was found. 
Obermiiller, Kuno. Ueber Tuberkelbacillenbefunde in der Marktmilch. Hyg. 
Rundscb., V, 1895, Xo. 19, p. 877. 
At first injected the milk without centrifuging. Some, at least, of 
the specimens had been freed from the slime layer in the creamery. 
Of 40 guinea pigs inoculated, 3 died of peritoneal tuberculosis. Eight, 
however, had died within a few hours of inoculation. Later he im- 
proved his technic by first centrifuging the milk and then injecting a 
mixture of the cream and sediment layers. By this method 38 per 
cent of all the animals injected became tuberculous. (Although the 
author does not specifically state it, it appears from the tables that of 
the 19 specimens the animals injected with which remained alive long 
enough to determine the presence of tuberculosis, 9 contained tubercle 
bacilli. 
Buege, A. Ueber die Untersucbung der Milch auf Tiiberkelbacillen. Inaug. 
Dissert., Halle, 1896. 
Nine specimens of Halle market milk were injected into 17 guinea 
pigs intraperitoneally. Three specimens were excluded on account of 
the earty death of the animals. In 2 of the remaining 6 specimens 
tubercle bacilli were demonstrated by the findings in the animals after 
death. He injected 5 cubic centimeters of a mixture of cream and 
sediment from the centrifuged 40 cubic centimeters sample used in 
each case. 
Delepine, S. Jour. Comp. Path, and Ther., vol. 10, pp. 150, 189. 
By microscopic examination found tubercle bacilli in 4 out of some 
40 specimens of unmixed milk. By the inoculation method, 20 to 
25 per cent of these milks were found to be tuberculous. He prefers 
the subcutaneous method of inoculation to the intraperitoneal, as 
being more delicate. 
