510 
EFFECTS OF MEDICINE ON HORSES. 
By Mr. Wm. Percivall. 
Pure or Caustic Barytes — Oxyde of Barium. 
[Continued from page 277.] 
CASE YII. — The apparent success attending its administration 
in Cases III and V, inspired me with a great desire to exhibit 
barytes in a form unmodified by any combination ; and from that 
circumstance more likely — as I imagined — to turn out more effica- 
cious. I at first procured what was called the pure barytes from 
the chemist, enclosed in air-tight bottles : finding it, however, ex- 
pensive (3s. 6d. per ounce), and, from some differences observable in 
its operation, doubting in some instances its purity, I at length 
essayed to prepare it for myself, and ultimately succeeded com- 
pletely to my mind. 
About this time, 1818, Col. Quist, then in great celebrity as 
superintendent of the riding department of the Ordnance, at Wool- 
wich, possessed an old* white horse, a great favourite in his school, 
that had for some two or three weeks been ailing, and had been 
treated for his complaints by the Colonel himself. Finding, how- 
ever, that affairs grew worse instead of better, he at length con- 
sulted my father concerning the old horse. 
July 18 th. — 'An albuminous, purulent, gluey discharge, having an 
offensive odour, issues from the near nostril ; purulent matter is also 
visible upon the septum nasi , with such appearances altogether as 
to lead to the belief that — although no ulcers are apparent — some 
exjst in situations higher up, where they cannot be seen. The 
submaxillary gland of the same side is swollen, and hard to the 
feel ; the opposite side of the head free from discharge ; no farcy ; 
the animal’s appetite and spirits are good ; and his condition to all 
appearance healthy. Let him take half a scruple of the pure 
barytes the moment after it is made into a ball. 
19 th. — Let his dose be doubled. 
23 d . — The scruple dose has been administered daily without 
any discoverable effect. Let him commence to-day taking it 
morning and evening, his appetite continuing very good. In the 
course of the day there has come on suddenly a profuse discharge 
of purulent matter, mingled in part with blood, from the diseased 
side of the nose, attended with a great deal of stench. 
Slst. — There has been some occasional slight failures of the ap- 
petite, but not sufficient to induce me to suspend the medicine. 
* Said to have seen twenty -five summers. 
