32 PROCEEDINGS OF THE VETERINARY SCHOOL AT ALFORT. 
Delafond, tend to prove that La Gesse chiche^, given to horses 
both in its dry and green state, may produce roaring. That 
professor and M. Renault have had occasion, in the course of 
the present year, to make the same remark in the establishment 
of a farmer, in the neighbourhood of Paris, who keeps his horses 
on winter tares, chopped and mixed with a small quantity of 
chaff and treacle. The roaring of these horses was very remark¬ 
able. The slightest exercise, continued for only one or two 
minutes, would excite it; and it speedily increased to such a 
degree, that for a little while they were threatened with suffoca¬ 
tion. One of them fell during the paroxysm and continued 
half an hour with frightful laborious breathing ; but generally 
the roaring ceased after a few minutes’ rest. In the interval 
between these attacks, the horses were perfectly tranquil; the 
respiration was natural, and they ate with appetite the ordi¬ 
nary allow^ance of healthy horses. 
Two of these horses were brought to the school, one to un¬ 
dergo medical treatment, and the other to be destroyed. This 
last was killed at the moment when the roaring was most 
violent; and neither in the nerves nor the respiratory passages 
was there any lesion which could account for this singular phe¬ 
nomenon. 
The other underwent medical treatment for twm months, and 
was at length destroyed during an access of roaring. The result 
of examination after death was, in this case, as little satisfactory 
as in the former one. 
Is this affection an inflammation {nevrose) of the respiratory 
nerves of the larynx? We are inclined to think so ; but we have 
no authority to affirm that it is so. 
Chair of Anatomy. 
Biliary Calculi. —M. Rigot, Assistant Professor, has 
added to the museum ninety calculi, collected from the hepatic 
and choledical canals of a horse. The dilatation of the different 
tubes, and the thickening of their parietes, were the only altera¬ 
tions which these productions had occasioned in the liver; and 
there was no symptom during life which could have induced a 
suspicion of the existence of these calculi. 
* The Latyriis Cicera (the flat-podded latyrus) cultivated, according to 
Groguier (Conrs d’Hygiene, p. 174), in the South of France, for the food 
of sheep while they are housed in the winter. 
Orfila (vol. ii, p. 166), following Duvernoi, attributes some poisonous pro¬ 
perties to this leguminous plant. He says, that when mixed with wheaten 
flour in the composition of bread, it has produced partial paralysis of the 
lower extremities; and that horses and fowls experience similar pheno¬ 
mena from the seed. Y. 
