REVIEW OF BIOLOGY. 
135 
To the author the case is interesting, as he believes it the first 
on record of such accident in cows—at least the French authors 
say that it had been observed only in mares.—( Journ. de Zoo - 
technie .) 
REVIEW OF BIOLOGY. 
A Case of Parasitism in the Horse, the Leptotena 
Cervi [. By M. Meguin]. —Every one who uses horses in the 
country knows the flat or spider fly (. Hippobosca equina Li). It 
flies little except to go from one animal to another, but. walks 
very fast on the body of the horse, moving obliquely or side¬ 
ways as crabs do ; it prefers the regions where the skin is thin, 
covered with few hairs, such as the perineum or under the tail. 
When it reaches these spots, it irritates the horse, especially 
those that are nervous, and makes them act violently to get rid 
of their presence. Lymphatic animals pay little attention to 
them. In one horse which presented symptoms of irritation 
analogous to those produced by the hippoboscus, the author 
found an ordinary parasite of.deer, the Leptotena cervi. The 
horse had been infected in a wood where that game is plenty. 
This is the first case observed in the horse.— (Soc. of Biology.) 
Upon the Pathogenous Agent of Rabies [By M. Pus - 
carin']. —In a series of researches made by the author upon the 
nervous lesions of rabies, the author has always found special 
formations which he has no doubt are of a parasitic nature and 
which he considers as the pathogenous agent of rabies. In 21 
cases examined, the constant presence of globular formations of 
various size, described as amylaceous bodies (Meynerl, Schaffer, 
Bobes, Kolesnikoff), their great number, special form, sometimes 
radiated, has for a long time attracted his attention and made 
him suspect that an intimate connection might exist between 
them and the cause of rabies. The parasitic character of the 
formation, their constant presence in the central nervous sys¬ 
tem, leave to him no doubt as to their being the pathogenous 
agent of rabies. It remains now to find the means to make 
cultures of this parasite and confirm his belief by experimental 
, proofs.— (Soc. of Biology .) 
Bactericide Action of Extract of Taenia Inermis 
[By MM. Picou and Raymond]. —If carriers of tsenias iner¬ 
mis exhibit some well known troubles by their presence, they 
seem also to derive some benefit from them. Indeed, they rarely 
suffer with infectious diarrhoeas, typhoid fever; besides, it has 
