68 DADD'S VETERINARY MEDICINE AND SUBGERY. 
with saliva, and violent convulsions will sometimes affect the 
whole frame. Such are the principal symptoms attending this 
formidable malady. 
It will be quite a novelty to some of our readers to be .n- 
formed that the horse is actually subject to the same diseases 
which afflict his master; and in view of showing that there is a 
reality in the author’s views on the subject now under considera 
tion, the following quotation from the “ Veterinarian” is offered, 
It will show, by way of comparison, the features of the diseass 
as it occurs in the horse and in man: 
“Tn the first place, as to. the exciting cause or causes. It is 
well known that among the exciting causes of epilepsy in the 
human subject, mental or moral emotions have long been con- 
sidered as holding a foremost rank. Without going into detail 
on this subject, or offering illustrations of this statement, it will 
suffice to remark that the experience of all adequately acquainted 
with medica] literature, or tulerably familiar with medical prac- 
tice, can not fail to supply them with numerous instances wherein 
this class of causes has been in operation as concerned in the pre- 
‘action of the disease in question, Over and over again I have 
yself witnessed cases of epilepsy, either during or after the par: 
zysm or fit, in which 1 have had good reason for entertaining 
the opinion that certain mental or moral emotions had largely, 
if not entirely, contributed to this result. Now, without deny- 
ing that, in some instances, fright may so far affect the horse as 
to prove an exciting cause of epilepsy in that animal, stili, I 
think that, almost as a general rule, the class of causes now 
under consideration may be excluded from further notice as tend- 
ing toward the production of this disease in the horse. 
Assuming this position for the sake of argument, we thus 
eliminate at once, so far as concerns this animal, most of such 
eases of epilepsy as, if speaking in reference to the human sub- 
ject, would be regarded as cases of epilepsy of centric origin. 
Without altogether denying that, in some instances, the presence 
of tumors, or morbid growths, or excrescences of any kind, or 
of spicule of bone in certain parts of the brain, or spinal cord, 
or their membranes, may occasionally operate as causes of epi- 
lepsy, yet I am by no means prepared to admit that their pres- 
ence in sucn places, by irritation of these structures, is so frequent 
a cance of this disease as is affirmed by some medical authorities, 
