454 
M. ARLOING. 
make inquiry regarding the state of the udder at an earlier 
date. If the mammitis is tuberculous, says M. Bang, it will 
be learned that a tumefaction of the udder has existed at a 
period more or less remote from the beginning of the altera¬ 
tion of the milk. 
When the diagnosis has been made, the cow ought to be 
treated as a tuberculous animal—that is to say, sequestered 
or slaughtered, according to the measure adopted ; with re¬ 
gard to the milk, whatever its character may be, its sale and 
consumption for man ought to be absolutely interdicted. 
The use of it for feeding animals on the place might be per¬ 
mitted, after it had been thoroughly boiled for a few minutes. 
The milk, then, may be dangerous when the udder pre¬ 
sents no sign of tuberculization. It hence results that all 
cows ought to be submitted to a careful surveillance. Gen¬ 
eral surveillance -is impossible, but it might be regularly ex¬ 
ercised in all dairy stocks kept for the production oi milk in 
the interior of towns, that is to say, in localities where a pre¬ 
vious authorization from the Council of Hygiene is necessary 
for the opening of the business. 
M. Lydtin has shown in his report of 1885 that the sur¬ 
veillance of dairy stocks can give good results only when the 
proprietor lends his assistance to the authorities. To be in¬ 
sured of this assistance, the authorities of the city of Carls- 
ruhe have not granted the permission requested until after a 
kind of contract has been made with the petitioner, by which 
the latter binds himself to submit to a series of measures or 
precautions which have the result of separating phthisical 
animals. 
We reproduce here some of the clauses of this contract: 
“ The local council of health charges itself with the con¬ 
trol of the production and distribution of the milk of the es¬ 
tablishment of Mr. X., who on his side binds himself: 
“To accept for milking purposes only cows belonging to 
breeds which ordinarily furnish good milk. 
“To use especially animals that have had from two to six 
calves, and not to employ older cows. 
“ To exclude from his business every animal that ema- 
