478 
LETTERS TO A SrUDENT. 
quently ill, and so often drenched, that at last no fluid medicine 
could be given, either standing or lying. The twitch was applied, 
though the surgeon had previously experienced its danger. The 
horse, however, got every drop of the medicine, and was instantly 
relieved from pain. He did not cough, but his breathing shewed 
at once that he was in danger. At night, the respiration was 
50, the pulse 75, small and hard. On auscultation at the trachea, 
there was distinct gurgling. The horse was immediately put 
under treatment, which I think was not sufficiently active, though 
it seemed to produce amendment until the fifth day. On the 
fourteenth day he died, never having lain after he had the 
draught. 
Except a small portion on the upper part of the left side, the 
pleura was intensely inflamed, and coated with lymph nearly an 
inch thick. The chest was full of water, in which were large masses 
of loose lymph. The lungs were completely disorganized ; the 
bronchial tubes in some places filled with solid lymph, in 
others with pus, in others with bloody froth. There were large 
collections of matter in the lungs, sdme fluid, and some semi¬ 
solid. 
Case VII.—A horse had the same medicine ; but neither 
coughed nor breathed as if any had entered the trachea. Next 
day it was sufficiently plain, and he was promptly treated. He 
lay down on the tenth night, and went to easy work on the seven¬ 
teenth day. Since that time the horse has been four times ill; 
but only once so severely as to require the same medicine, which 
did no harm upon that occasion. 
Case VIII.—A carriage horse got ginger, sp. terebin., ammo¬ 
nia, oil, and water. He took the medicine without the least re¬ 
sistance, but his throat was on the stretch when head was up, 
and when it was let down some of the medicine ran from the 
nostrils. He coughed none. In a few minutes his breathing 
was at 110; he was immediately put under treatment, and re¬ 
covered. He did not lie down until the twelfth night. 
Case IX.—A horse got ammonia, spirit, tereb., and sulph. 
zinci, in water: he coughed and became ill, but was neglected, 
and died on the eleventh day. The chest presented the same 
effusion of fluid, inflammation of the pleura, and disorganization 
of the lungs, as found in case VI. 
Case X.—A foal got warm ale, pepper and gruel, and died the 
same day. 
Case XI.—A draught-horse got spirits of turpentine alone, 
and died instantly. 
Case XII.—A brown marc got a bottle of linseed oil, and died 
in about a fortnight. There was much water in the chest, and 
