146 
DISEASES OF THE BRAIN AND HEART. 
indication of any of them bein^ injurious, I came to the con¬ 
clusion that the heifers were suffering from the effects of this 
poison. 
Both lingered on for several days, gradually getting worse, 
and as I was anxious to make 2 ,post-mortem examination, the 
one first attacked was killed. The following appearances 
presented themselves: the contents of the thorax perfectly 
healthy, and also all the abdominal viscera, with the excep¬ 
tion of the colon, the internal surface of which had nume¬ 
rous patches on it,about thesizeof a crown-piece,and of a dark- 
red colour. The stomachs contained no solid ingesta, only 
the gruel which had been administered to the animal pre¬ 
vious to its death ; the membranes of the brain, and the brain 
itself, were very much congested, all the vessels being dis¬ 
tended with dark-coloured blood. The other animal died 
the next day; but being from home I had no opportunity of 
making a post-mortem examination. Upon my pointing out 
the cause of the illness of the two animals to the owner, he 
at once removed the other two beasts from the field until 
the ditch had been cleaned out. They were then again 
placed in the field, and remained there for some considerable 
time without any injury resulting. 
(To he continued^ 
ON DISEASES OF THE BRAIN AND HEART IN 
THE HORSE. 
By Qu^sitor.^^ 
I AM very glad that the cases published in the last month’s 
number of the Vetennarian have given you an opportunity of 
drawing the attention of veterinary surgeons to two forms 
of disease in the horse, the early stages of which, as regards 
their diagnosis, are involved in considerable obscurity. I 
allude, of course, to diseases of the brain and heart. Now 
that the subject has once been mooted, I hope that it will 
not be allowed to drop until we have arrived at some data by 
which, at least, we may be able with greater certainty to 
diagnose them. As regards treatment, our present know¬ 
ledge will, I fear, not avail us much. My own opinion is, that 
in either case the malady has made great progress before our 
attention is drawn to it. With reference to those diseases of 
the brain in which, after death, we find alteration of its sub¬ 
stance (I do not include that malady commonly called 
