I’HE 
VETERINARIAN. 
VOL.VllI, No. 87 .] MARCH 1835. [New Series, No. 27. 
MR. YOUATT^S V ET E RI N A R Y L E CT U R E S, 
DELIVERED AT THE UNIVERSITY OF LONDON. 
LECTURE XLVI (continued). 
Phrenitis in the Horsey Catthy and Sheep. 
WE sometimes meet with primary inflammation of the brain 
or its membranes, or of both; and of the membranes oftenest 
when both are not involved. At other times, if the determination 
of blood to the brain, of which I have been speaking, is not suffi¬ 
cient to destroy the animal, it produces considerable irritation by 
its continued presence, and thus terminates in inflammation. 
The farrier calls this disease mad staggers, in distinction from 
the quieter malady which we have been considering, and which 
he terms sleepy staggers. 
Parly Symptoms. —Whatever be the origin of phrenitis, its 
early symptoms are scarcely different from those of apoplexy. 
The horse is drowsy, stupid, his eye closes, he sleeps while he 
is in the act of eating, and doses until he falls : the pulse is slow 
and creeping, the breathing oppressed, yet stertorous and labo¬ 
rious. This is the description of apoplexy; the symptoms may 
differ a little in intensity and in continuance, but not much in 
kind. It is, nevertheless, most desirable that we should be en¬ 
abled to distinguish the one from the other, in order that our 
preparation for the after stages may be different, and our treat¬ 
ment, if possible, even more energetic in the latter than in the 
former. 
Difference between the Symptoms of Phrenitis and those of 
Apoplexy. —The phrenitic horse is not so perfectly comatose as 
his fellow that labours under apoplexy. The eye will respond a 
little to the action of light, and the animal is somewhat more 
manageable, or at least more susceptible, for he will shrink when 
he is struck, while the other often cares not at all for the whip. 
In the duration of the early symptoms there is some difference. 
If the apoplexy proceeds from distention of the stomach, four- 
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