THE ETIOLOGY OF BLACKLEG, ETC. 311 
tality caused in each lot by sang de rate during the period of 
these experiments. 
The lot A lost 7 animals from sang de rate. 
The lot B lost 8 „ „ 
The lot C lost 9 „ „ 
Total . 24 dead. 
It is best to add that in addition to these losses occasioned 
by sang de rate , and recognised after post-mortem examina¬ 
tion—(1) That in the month of January, 1860, three sheep 
of the lot C died cachectic; ( 2 ) that, on the other hand, 
several sheep of the lot B refused, during the same month, 
all kind of food, wasted daily, and succumbed to anaemia; 
(3, lastly) that the sheep of the lot C continued to die of 
cachexia. 
In consequence of the two diseases produced by the exclu¬ 
sive nourishment to which each lot had been submitted for 
two years (it happens frequently that animals once fattened 
and not then killed succumb some time after), the experiment 
could not he continued as a test for sang de rate ; the three 
lots were sold, and immediately replaced by a new flock 
composed of 180 to 200 sheep from twenty to twenty-five 
months old. In 1860 and 1861 the experiments were re¬ 
peated on this new lot in exactly the same manner, with this 
important modification, in order to find out if, as had been 
stated by M. Hugard (‘ Esquisse de Nosographie Beler/ 
1825, p. 317), M. Yvart (‘ Recueil, 5 1828, p. 383), and so 
many others, the principal cause of the disease was in the 
passage of a flock from a bad regimen to a more substantial 
one. The results obtained by the Eure and Loire commission 
in this second series of experiments were the same as the 
first; that is to say, at the end of 1861 the sheep, instead of 
dying of sang de rate , succumbed to hydrsemic anaemia. 
To resume, these repeated experiments demonstrate— 
1. That a substantial stimulating food is not, as many still 
believe, a principal determining cause of sang de rate ; 
2. That refreshing watery food is not at all preservative; 
3. That the sudden change of sheep from bad to good 
condition, and reciprocally, does not appear to predispose 
them to sang de rate ; 
4. Lastly, that the derangements which may result from 
food are due to its abuse, but these abuses are without 
influence on the development of sang de rate. 
In the face of the results obtained by these experiments, 
to insist on it any longer would be to follow a phantom. 
