86 
TUMOURS IN THE BRAIN OF A HORSE. 
aloes^ which kept his bowels nicely open without purging 
him. 
Wednesday.—He remained in the same comatose condition 
all day until the evening, when he became very violent, 
thrusting his head against the wall, and sweating profusely. 
I administered the tincture of aconite again, and in about 
four hours afterwards he became tranquil, and remained so till 
Thursday afternoon, when his pulse rose to 70, and shortly 
afterwards to 100. He did not stand still for two minutes 
together, and every movement seemed to be perfectly inde¬ 
pendent of his will. 
, He died on Friday morning about 3 o’clock. 
A post-mortem examination was made shortly afterwards, 
and the brain sent to the College for your inspection. 
EEMAKKS ON THE CASE BY PROFESSOIl VARNELL. 
The symptoms of the preceding case, as described by Mr. 
Henderson, were evidently diagnostic of cerebral disease. 
Nevertheless, the precise character of the affection no one, I 
imagine, would have been bold enough to affirm, since the 
same train of symptoms would arise from other causes than 
those upon which they were found to depend. Some very 
interesting cases of brain affections are recorded in this, 
and also in the last number of the Veterinarian, in which 
the symptoms, vHether arising from disease at the base of 
the cerebrum (see Mr. Kirkinan’s case), or of the upper sur¬ 
face of the posterior lobes of the cerebrum (see two cases by 
Mr. Toll, one in this and the other in the November number 
of this Journal), or from abnormal growths in.the interior of 
the lateral ventricles (see an unusual case of the kind, by Mr. 
J. Woodger, in the present number), were very similar in 
many respects; there being also evidence in each instance 
that the disease was of very slow growTh. Although, there¬ 
fore, Mr. Henderson does not say that he suspected the 
horse to be labouring under disease of the cerebrum, never¬ 
theless the general tenor of his remarks, and the treatment 
he adopted, would suggest this idea. 
I will now give a brief account of the examination of the 
brain in question ; and may first observe, that those who have 
had opportunities of removing this organ from the cranium, 
whether for the purpose of simple dissection or patho¬ 
logical investigation, cannot have failed to notice that, after 
the roof of the skull is taken away, there is a tendency for 
the upper surface of the cerebrum to collapse—that is, if the 
brain is in a normal condition—and thereby to become 
