178 
farms. One hundred and seventy-two of these farms were in Chesh- 
ire, and 18 of them (10.46 per cent) supplied milk found to con- 
tain the tubercle bacillus; 65 were in Derbyshire, and 6 (9.23 per 
cent) supplied milk infected with tubercle bacilli; 25 in Stafford- 
shire, of which 2 (8 per cent) supplied tuberculous milk. 
Thus the milk sent by rail to Manchester from 272 farms, and 
examined by Professor Delepine, was tuberculous from 26 of the 
farms (9.5 per cent). (See Report Health City of Manchester, 1901, 
p. 238.) 
Collingridge. Tubercle bacilli iu milk. (Editorial Abstract in Brit. M. J., 
1907, V. 1, p. 763.) 
In 1904, milk samples representing 22 counties in England were 
taken at the railway station and submitted to Doctor Klein, with the 
result that out of 39 samples tubercle bacilli were found in 3 ; in 
August, 1905, a second series representing 22 counties, and out of 22 
samples 2 contained tubercle bacilli; in 1906, a third series, repre- 
senting 13 counties, yielded 2 positive tuberculous milks out of 25 
samples. 
Proskauer, Seligmann, and Croner. Zeit. Hyg., Bd. 57, 1907, p. 173. 
Made an examination of the milk sent in from Denmark, compar- 
ing it with Berlin milk. The examination was very ‘thorough, in- 
cluding a search for tubercle bacilli by means of animal inoculation. 
Danish milk: Thirteen specimens examined, 5 found to contain 
tubercle bacilli (38.5 per cent). There appears to have been a verbal 
agreement with the contracting parties that the milk furnished should 
have been heated 80° to 84° C. Berlin milk: Of 9 samples, 5 con- 
tained tubercle bacilli (55.5 per cent). However, in five tests of milk 
from dairies controlled by veterinary inspections no specimens were 
found to contain tubercle bacilli. 
Hess, Alfred H. The incidenoe of tubercle bacilli in New York City milk, 
with a study of its effects on a series of children. J. A. M. Ass., Vol. LII, 
No. 13. (19—.) 
One hundred and twelve specimens of raw milk were examined by 
inoculation into 224 guinea pigs of the cream and sediment obtained 
by centrifugalization, but in 5 instances the animals died within two 
weeks, or were lost in other ways, leaving only 107 samples to be con- 
sidered. 
There were 17 positive results out of the 107, which means that 16 
per cent contained tubercle bacilli. 
THE NUMBER OF TUBERCULAR COWS IN THE DAIRIES SUPPLYING 
WASHINGTON, D. C. 
A letter was addressed to Dr. W. C. Woodward, health officer, 
Washington, D. C., and to the Agricultural Department, requesting 
data as to the number of cows in dairies supplying milk to the city of 
