RABIES AND CONGESTION OF THE BRAIN. 
313 
statement; but the experiment failed to give the true result as it 
occurs in horses made roarers by the ordinary process of disease. 
Mr. Percivall’s experiment sets the question at rest as to the 
seat of whistling not having place in the windpipe, because 
whistling is a mild form of roaring, which the experiment by 
ligature would shew to be a more extensive disease than actual 
roaring ; while at the same time it has been proved to me by 
experience, repeatedly confirmed upon the backs of animals thus 
affected, that we first hear, when gallopping a whistler, a some- 
thing in his breathing, to use the words of an old friend and very 
good judge/ 4 not quite right.” As the horse proceeds, this sound 
grows more distinct and remarkable : at length he is heard to 
whistle, and, provided the trial is sufficiently prolonged and 
severe, the whistler will disclose that he also roars. However, 
there are whistlers that require more than others to make them 
roar; but put weight upon their backs, and get them into a stiff 
country with hounds and a good fox, and there are but few 
whistlers who will not discover themselves distinct roarers. I 
mention this circumstance not as a mode of detection, but to 
shew the nature of the disease. Whistling, therefore, is a modi- 
fication of roaring, and very commonly terminates in the exclama- 
tory form of the affection. 
[To be continued.] 
CASES OF RABIES AND CONGESTION OF THE 
BRAIN. 
% Mr. W. A. Cartwright, V.S., Whitchurch. 
Case I. — On Sunday morning, April 4th, 1841, I was sent 
for to see a yearling calf, belonging to Mr. Dickins, of the Black 
Park, near this place. She was first observed about seven o’clock 
on the previous night, in a field adjoining the house, and was 
roaring a great deal, and looked very wild, foaming at the mouth, 
and gallopping about for some distance, and then falling down. 
She was left out with some others during the night. 
6th . — Early on the following morning she was in a similar 
state, except that she would run at any one. At nine in the 
morning I saw her, and found her in one of the divisions of a 
cow-house. She was standing up, but on going near her she 
would make a bolt at us. She foamed at the mouth a little. Her 
general appearance was bold and lively, particularly about the 
