638 
REVIEW OF BIOLOGY. 
was only—thanks to its natural vigor—that he was able to 
stand up. 
Supposing that these were due to an acute pain caused by 
the bruises the animal had received while sick, he was re¬ 
turned to his stall and camphorated frictions made over his 
legs. 
At the second visit everything seemed to have returned 
to their normal condition and all functions working well. 
Another bleeding, smaller than the first, was made, rectal in¬ 
jections and nitrated drinks were prescribed. The animal 
recovered. 
Questions asked .—Were the spasms the result of pains from 
the bruises? Were they that of reflex sympathetic action or 
only simple manifestations of vertigo .—La Veterin. Espanola. 
REVIEW OF BIOLOGY. 
RESEARCHES UPON THE ORIGIN OF THE LARV/E OF CESTRIDES 
IN THE STOMACH OF DOGS. 
By M. A. Raillet. 
On different occasions the presence of the larvas has been 
mentioned in the digestive canal of carnivora. 
What is their origin, or, rather, in what manner did they 
reach the stomach? To answer this question two supposi¬ 
tions are possible. Some (Colin, Brauer) admit that carnivora 
swallow them with the detritus of horses which they may eat, 
and that these larvae implant themselves in the new ground 
they have reached. The dog observed by Colin was born at 
the beginning of the winter, and consequently could not have 
received a new-laid egg of (Estride, and, besides, he had been 
always fed with the detritus of others. Others think, on the 
contrary, that the gastric larvas of the dog come from eggs 
deposited upon its own skin, or swallowed with his food. 
By experiments, made for two years, Mr. Raillet estab¬ 
lishes the fact, according to the views of Colin and of Brauer, 
that the larvas of the Gastrophilus equi absorbed by the dog 
H 
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