EXTRACTS FROM EXCHANGES. 
65 
uously some undesirable, but otherwise not serious, concomi¬ 
tants noticeable in the attainment of the physiologico- 
therapeutical action of chloride of barium. 
Case I .—A dark brown six-year-old stallion, after suffering 
from constipation, showed symptoms of most intense colic, 
borborygmi being almost entirely absent. After giving an 
intra-venous injection of barium chloride i.o; aq. dist. io.o, 
the animal contracted his upper lip, swung his tail actively, 
and, after severe moaning and vigorous straining, passed 
several hardened fascal lumps. He was led about the yard, 
passing wind and fasces profusely and almost uninterruptedly 
for about two hours, when, owing to the prostration resulting 
from the profuse discharges, he was stabled. 
Thereupon a muscular tremor set in, which spread itself 
over the entire body, but manifested itself most conspiciously 
in the limbs. 
The skin, whose temperature seemed to be elevated, but 
unequally so in various regions, was covered with sweat in 
the region of the flanks, the pulse and respiration were 
markedly accelerated, the rectal temperature was elevated 
0.5° C. The prostration increased hourly, attaining at mid¬ 
night such a height that the animal was unable either volun¬ 
tarily or with assistance to rise from the recumbent posture ; 
at this stage the animal was wholly covered with sweat and 
passed semi-liquid fasces almost continuously from the anus. 
By morning, however, the pulse and respiration had righted 
themselves, the appetite had partially returned, the tempera¬ 
ture alone remaining elevated. Upon leading the animal into 
the yard, a curious symptom showed itself, viz : decided 
foot lameness in the off fore limb; this lameness was associa¬ 
ted with pain, as was evidenced in the face of the animal, or 
in the behavior of the animal when attempts were made to 
merely touch the foot. An examination of the hoof showed 
an increase of warmth appreciable by the hand, the manifes¬ 
tation of excruciating pain upon the gentlest tapping with a 
hammer, especially over the wall and the sole, stronger pulsa¬ 
tion in the digital arteries, all denoting an inflammation of 
the hoof (pododerm superficialis). Associated with this was 
a very characteristic condition, viz: a moderately circum¬ 
scribed inflammatory oedema extending from the hoof to the 
knee joint. This setiologically interesting lameness, which 
furthermore refused to respond to the ordinary remedies, ice, 
vinegar, poultices, etc., lasted three days, at the end of 
which period all inflammatory symptoms subsided, and total 
recovery ensued. Four days after the colic the animal was 
at work again. 
