170 
4. Feeding calves with similar milk, 5 out of 12 (41.66 per cent) 
became tuberculous. 
5. Feeding pigs with similar milk, 2 out of 5 (40 per cent) became 
tuberculous. 
McFadyean & Woodhead. On the transmission of tuberculosis, etc. Internat. 
Cong. Hyg. and Demog., 1891, sec. 2, p. 197. 
Inoculations with tuberculous udder juice and milk from tubercu- 
lous udders 70 per cent were positive (14 of 19). Inoculations with 
nontuberculous udders and milk from tuberculous cows (udders not 
affected), 16 per cent were positive (2 of 13). 
Bang, B. Experimentelle Untersuchungen ueber tuberculose Milch. Deut. 
Zeit. f. Thiermed. XVII, 1891, S. 1. 
Examined the milk of 28 cows having advanced tuberculosis, but 
no udder involvement. Rabbits injected, with 1 or 2 cubic centi- 
meters intraperitoneally. The milk of two of these cows was shown 
to contain virulent tubercle bacilli. 
Fiorentini, A. Giornale della It. Soc. d’igiene. 1892, p. 198. (Ref. in Baum- 
gartens Jahresb., 1892, p. 698.) 
Injected the milk of tuberculous cows into the peritoneum of 
guinea pigs, with positive results (tuberculosis) in three cases. In 
two of these there was udder tuberculosis. 
Friis, St. Beitrag zur Beleuchtung der Frage ueber die Ansteckungsgefahr 
der Handelsmilch mit bezug auf die Tuberkulose. Deut. Zeit. f. Thiermed., 
Bd. XIX, 1893, p. 115. 
Samples of mixed milk from 46 establishments in and about Co- 
penhagen were examined. Experiments from May to October. 
Eighteen samples must be excluded from consideration on account of 
the early death of the inoculated animals. Of the remaining 28 speci- 
mens, 4 were found to contain tubercle bacilli (14.3 per cent). One 
of the positive specimens was from a herd of 30 cows, only 1 of which 
was suspected of having tuberculosis, showing the danger of diluted 
tuberculous milk. The other milk in which the tubercle bacilli was 
found was from dairies having one or more tuberculous cows. 
Friis, St. Fortgesetzte Untersuchungen u. s. w. Deut. Zeit. f. Thiermed. Bd. 
XX. 1894, p. 195. 
In a former paper, q. v ., the author has considered town milk, 
from Copenhagen. He now investigates country milk, taking the 
specimens at the railroad station upon the arrival of the milk. Ex- 
periments from J anuary to May ; the former examinations were at a 
later time in the year. 
