38 
ANNUAL REPORT OF THE 
membrane is of a yellow colour ; the discharge is more or less 
abundant, and the enlargement of the glands beneath the jaw 
more or less considerable. 
In the mal de tele de contagion , the disorganization of the nasal 
membrane is neither preceded by buttons, nor ulceration; it fol¬ 
lows red, lees-of-wine coloured spots, more or less extensive; a 
sort of petechise in the substance of the membrane : its progress is 
even more rapid than in acute mange ; it is a veritable gangrene, 
or carbunculous affection of the pituitary membrane. 
Th rombus. —In the space of less than three months, during 
this year, more than twenty horses were brought to the School 
to be treated for thrombus, in none of whom it had been deve¬ 
loped in less than twelve, fifteen, or twenty days after the bleed¬ 
ing, and without our being able to perceive that the animals had 
rubbed themselves. This thrombus had appeared while they 
were at work, and was accompanied, in almost every case, by ul¬ 
ceration of the jugular. During their treatment, wffiich often 
lasted a very considerable time, there was frequent haemorrhage. 
M. Renault thought he could attribute this accident to default 
in the plasticity of the blood, which was not sufficiently rich in 
fibrine to produce a prompt and solid cicatrization of the open¬ 
ing made in the vessel by the fleam. That which afterwards 
seemed to give much plausibility to this opinion was, that three 
of the horses, which laboured under thrombus, were attacked by 
acute farcy, of which they died, and that a fourth died of acute 
glanders. 
Grippe. — In the course of the months of May and June last, 
the period when the malady called the grippe attacked the human 
species throughout almost the whole of France, a great part of 
the horses convalescent after internal diseases, or affected by sur¬ 
gical maladies, and which were in our hospital, were attacked by 
a disease having great analogy to the grippe. Diminution of 
appetite, heaviness of the head, want of spirits, general feeble¬ 
ness, heat and dryness of the mouth, and redness of the pituitary 
and conjunctival membranes, announce the commencement of the 
malady. Some of these symptoms become more and more ag¬ 
gravated ; and there are joined to them, difficulty of swallowing, 
abundant and viscid saliva, a cough at first unfrequent and dry 
but becoming more frequent and moist, and discharge from the 
nostrils. In many cases the animals return a great part of their 
hay and corn, or liquid food, through the nostrils : the least pres¬ 
sure on the larynx is generally very painful, and produces cough 
more or less frequently repeated, and which seems to cause con¬ 
siderable suffering. The pulse, regular and in the natural state 
in some, is accelerated in a greater number; but only becomes 
