SOCIETY MEETINGS. 
867 
molar is an indication that others are not too sound. Yon will 
find by observation that an animal with a diseased molar, if it 
occurs during the earlier years of his life, is quite sure to have 
an early disturbance of his whole dental mechanism, as I be¬ 
lieve that diseased teeth are due to faulty development. 
Side-pulling is a bane to the man practising dentistry. It is 
a simple habit to the laymen, and one that the laity believe the 
veterinarian should easily remedy, whether it is caused by abra¬ 
sions of the buccal membrane or from sharp teeth of any kind. 
In the latter instance dentists can be of some avail. Another 
great cause of side-pulling in my observation is lameness or sore¬ 
ness in one side of. the body. Navicular disease is another cause. 
You will find this chiefly in the animal that does not pull much. 
He is the worst side-pulier, and does not take the line, and keeps 
edging from one side of the street to the other. I firmly believe 
that Dr. Quitman’s central cause can be one of the etiological 
factors in this condition, namely, lesions of the brain, but I do 
not believe that softening could be put under that head, but 
chronic hydrocephalus. Ocular disease is another great cause. 
An animal that has not good and perfect sight might have it 
from central origin. In these cases it is foolish to try and cure 
the side-puller by removing and cutting the molar. 
Dr. Dyso 7 t.^li\ my experience it is a habit and due in a 
great many instances to over-checking or faulty driving. A 
good remedy for its cure is a change of driver, liberal use of the 
whip and to abandon the high-checking of the horse. I think 
in the majority of cases it is merely a habit. 
Dr. Wyman .—I was so forcibly struck when the statement 
was made of softening of the brain and cerebritis that I thought at 
some time or other during my life at college that I might have 
been negligent in gathering the facts, and for that reason only 
did I beg your permission to speak on the question which before so 
suddenly came to an end. Hydrocephalus is a condition where 
we have the lateral ventricles, the third and never the fourth 
filled with serum. This serum is the result of either a transuda¬ 
tion or exudation from the choroid plexuses. It may follow an 
acute lepto-meningitis or be an oedema pure and simple. The 
condition which we usually find on post-mortem is a serum 
amounting from 20 to 40 grammes, 40 being the ntmost given 
by Degraf. Lepto-meningitis is only too often the result of an 
infection, and softening of the brain never takes place at all, ex¬ 
cepting traumatism is present. The point I wish to make, I 
put it of traumatic origin with subsequent infection. 
