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HYDROCEPHALUS, OR WATER IN THE BRAIN. TUMOURS 
IN THE BRAIN. 
WATER in the brain or hydrocephalus is not uncommon as a congenital 
defect in foals, but is only rarely met with in older animals. The 
hydrocephalic head is recognised by the great enlargement of.the volume of 
the skull. In the early stages, the foal is irritable and feverish. Afterwards 
he becomes weak, and the sensibility is impaired. Paralysis and convulsions. 
precede death in fatal cases. The largest amount of fluid recorded as having 
accumulated ina foal’s brain, is two and a half gallons. Recovery in this 
disease is very rare, and even in the most favourable instances, there is little 
profit to be derived from keeping hydrocephalic foals, as they never thrive. 
Tumours in the cavities of the brain of the horse are very common, but 
as they grow very slowly, and do not occasion severe symptoms until they 
have attained a size about as large as a pigeon’s egg, their presence is rarely 
suspected until shortly before leading to a fatal result. At the autopsy of 
the famous racer Macgregor, Mr. Charles Gresswell, of Nottingham, found a 
large tumour in each of the lateral cavities of the brain. 
