RABIES. 255 
Urinary Organs . — Bladder empty, which, with the whole uri- 
nary apparatus, was perfectly normal. 
Brain . — The membranes investing and covering the brain were 
all more or less inflamed, particularly the pia mater, velum inter- 
positum, and the arachnoid, about the pons varolii and commence- 
ment of the cord. The substance of the brain itself healthy. 
Ventricles empty. 
Remarks . — This is the second case of rabies, in the horse 
species, 1 have met with in my practice, both of which were mares, 
and both were in foal : but what I wish more particularly to call the 
attention of the profession to is, the circumstance that in each case 
the foetus, on post-mortem examination, presented exactly the 
same morbid appearances as those observed in the mother ; a fact 
that I do not recollect being mentioned by any writer on morbid 
pathology who has treated this subject. 
There is also another circumstance that deserves a notice in this 
place. Why did the animal rub her muzzle on the off side, where 
the bite was inflicted, and why betray more excitement on being 
approached on that side] Although fifty-one days had elapsed 
since the poison was communicated, one would suppose that in 
that time all local irritation would have subsided, and doubtless 
this was the case ; but it had undoubtedly been excited anew, as 
the disease developed itself. 
This secondary local irritation is a peculiarity belonging to the 
brute creation ; the human species, as far as I can ascertain, not 
being liable to it. 
I have, in all animals labouring snder rabies, invariably noticed 
the absence of cough, or other symptom of an important pulmonary 
character, that would lead you to suspect such extensive disease 
of the respiratory apparatus as was found on post-mortem exami- 
nation of these parts ; yet these organs were more affected than 
any other, and we have only the dyspnoea to guide us in diagnos- 
ticating disease of the lungs. We have redness and congestion 
about the air-passages, and sometimes about the stomach and in- 
testines, and many ascribe rabies to a morbid state of these parts ; 
but I think it may more properly be attributed to be a disease en- 
tirely of the nervous system, from the extreme sensibility, the rest- 
lessness, and spasmodic efforts at swallowing, and the irritability 
and suspicion of the animal. 
As no sign of disease could be found in the bladder or uri- 
nary organs, I cannot account for the great irritability of these 
parts during life, further than they have been affected sympatheti- 
cally, through the nervous system being thrown into a state of 
convulsive irritability. 
This disease has long had assigned to it a name that does not 
