TRISMUS, SPASM OF THE DIAPHRAGM, &C. 83 
rally exceedingly angular, which explains the roughness of the 
external surface of the calculus. Like all other vesical calculi 
in the horse, it was composed almost exclusively of carbonate 
of lime. 
Kecuell, July 1834. 
TRISMUS, SPASM OF THE DIAPHRAGM, AND 
GREAT NERVOUS IRRITABILITY. 
Bj/ Mr. J. Sinclair, F.N., Morpeth. 
I WAS called to a bay pony, about fourteen hands high, 
aged, on the morning of the 19th September, at nine o’clock. 
I found him with his jaws rigidly locked, pulse 72, respira¬ 
tion laborious, severe convulsive twitchings of the muscles 
of the head and neck, frequently lying down and getting up ; 
when up, perambulating the stable for a few seconds, and then 
again lying down. The blacksmith had abstracted six pounds 
of blood. I immediately administered aloes Barb. 3vj, aqua 
bull, ^vj, ol. lini ^viij, with a small necked bottle. A mustard 
cataplasm was applied to the head and whole length of the spine; 
a double blanket was secured upon him, and repeated enemata 
given. A considerable quantity of unmasticated oats passed off 
with the first enema. 
1 o'clock .—The convulsive motion of the muscles abated. 
Patches of profuse perspiration broke out on several parts of the 
body. The pony takes longer intervals of rest, and sighs and 
groans most piteously. The respiration is quicker. Give gum. 
opii 3j, gum. asafoetid. 5ij, aqua bull, ^vj, camph. spt. ^iv. 
5 o'clock .—Jaws much relaxed. There was a loud beating in 
the region of the diaphragm, which could be heard at the distance 
of ten yards, and not synchronous with the pulse. This led me to 
suppose that it was a spasmodic action of that muscle, accom¬ 
panied w’itha distressing cough and jjrofuse perspiration. I or¬ 
dered the following draught, gum. opii, pulv. digit, iia 5j, antim. 
tart, .^iss, aqua bull. ^viij. 
9 R.M. —Pulse at the submaxillary and radial arteries imper¬ 
ceptible; at the heart, fifty: the spasmodic action of the diaphragm 
nearly subsided; extremities at their natural temperature; par¬ 
takes freely of gruel; has no inclination for lying down. 
2i)th, A.M.— Symptoms greatly improved. No evacuation of 
faeces since the previous morning. Give aloes Barb. 3iij, acpia 
bull, .^viij, ol. hui ^vj, enemas repeated. 
7 I’.M.—Has had one motion, accompanied with a most foetid 
smell; takes a little mash, and drinks freely of gruel. 
21 —Convalescent. 
