EXTRACTS EROM EXCHANGES. 
283 
ing all redundant pathological tissue, he cleanses the exposed 
surface and dusts a thin layer of finely powdered nitrate of lead 
over it; he then applies an aseptic dressing and bandages every¬ 
thing so as to exert slight pressure, the pressure being the best 
method of keeping in check proliferating granulations. The 
bandages and dressings are removed every three days, and each 
moist and sprouting area as it manifests itself is dusted with lead 
nitrate. After five or six changes of dressings, the affected area 
presents a healthy uniform yellowish-brown aspect, and in three 
or four weeks the animal can resume work. Robertson’s appli¬ 
cation of iodine solution in ether and the subsequent use of iodo¬ 
form has not in the hands of the author given results comparable 
with the above. Another remedy much in vogue in Germany, 
but not used by the author, is thioform. As these cases of the 
author were of mild severity he does not wish his conclusions or 
deductions to be authoritively accepted.—( Oest. Monatschrift f 
Thierhlk. und Revue.) 
A Study of the Physiouogicae and Therapeutical 
Effects of Barium Chloride. —Upon the report of two 
cases of poisoning with Ba Cl 2 , D. determined to experiment 
with the remedy and discovered:—ist. That in veterinary 
medicine, whatever its effects elsewhere, Ba Clgiven intraven¬ 
ously, subcutaneously, or per os, causes energetic peristalsis asso¬ 
ciated with profuse discharges. 2d. That in the ox and the 
sheep the effect is milder and less reliable. Taking advantage 
of these facts he resorted to the use of the drug in colic, and 
achieved results unattainable by either eserin or pilocarpine. To 
substantiate this the author tested the remedy at his clinic. 
Given per os , according to D., a medium-sized dose (10.0), either 
in pill or solution, gives evidence of their action in from 10 to 
45 minutes ; given intravenously or subcutaneously the effect is 
very rapid, rapid action being what we want in colic. The 
author limited the trial of the remedy to subcutaneous and intra¬ 
venous injections, experimenting only upon sound horses. Intra¬ 
venous injection is a simple and safe procedure provided a few 
simple rules are followed. The hair is shaved from the jugular 
region, the area disinfected, the jugular vein compressed in order 
to cause venous turgescence above the point of pressure, and a 
sterilized canulaof a sterilized syringe (holding 5.0 to 10.0) is in¬ 
serted slantwise into the vein. The drug is a clear white, salty 
crystalline substance, soluble in water; it is injected in watery 
solution of the strength of 10 per cent. The horses experi¬ 
mented upon were numbered, their soundness having: been es- 
