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DISLOCATION OF THE OS CALCIS. 353 
DISLOCATION OF THE OS CALCIS. 
By G. Agersborg, D.V.S. 
I bad a singular case—if my diagnosis was correct—of dislo¬ 
cation of the os calcis in a two-year-old colt, produced by a kick 
of another horse. The bone on examination was found bent out¬ 
wards and downwards at an angle of little more than 45°, fol¬ 
lowed in its course by the tendon of the perforatus muscle still 
adhering; there was very little swelling, but considerable tender¬ 
ness ; no crepitation w^as noticed, hence my opinion of simple 
dislocation, although difficult for me to understand how this can 
take place. The bone yielded on manipulation, and was restored 
without difficulty to its proper place and secured by means of a 
plaster Paris paste enclosed in a pasteboard form, left on for five 
weeks, when the colt was discharged, leaving no lameness. A 
small curb is all that is left to tell the tale. 
POISONING IN A COW BY EUPHORBIA MARGINATA. 
By the Same. 
A case of poisoning in the cow from eating the euphorbia 
marginata was observed. She presented the following symptoms: 
Temperature, 93°; respiration, 18°; pulse not perceptible ; at 
each respiration an extremely deep and harsh moan, as if in the 
greatest misery; head stretched out on a parallel line with the 
neck; ears and horns very cold and slightly moist, coupled with 
anorexia; did not move nor could be made to move from her 
position, which was erect; eyes dull and half-closed ; regurgitation 
i 
suspended; frequent attempts to vomit, and a little froth at the 
mouth. She was treated with large doses of saline cathartics and 
copious drinks and emetics of a mucilaginous character. She 
gradually recovered in four days. 
