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EFFECTS OF MEDICINE ON HORSES. 
I have myself administered it by way of a tonic, but I have no 
recollection of having noticed any particular benefit derivable 
from it. Of the preparations of iron, that in most common use 
in veterinary medicine is 
The Sulphate of Iron, or Green Vitriol , as it is often 
called, or Copperas . It has for years enjoyed among us a high 
character as a tonic ; and though, perhaps, of late years it has 
been less used than formerly, it still constitutes the basis of the 
tonic mass of most of the old practitioners. 
With a view of testing the efficacy of green vitriol in glanders, 
and, at the same time, of ascertaining its general effects on the 
constitution, the following experiment was made 
Case I. — On the 2d May, 1821, a brown horse was admitted 
into the infirmary at Woolwich for acute glanders. The horse 
was taken from a stable in which another, since destroyed for the 
same disease, had stood ; and two other horses of the same pro- 
prietor a day or two afterwards exhibited suspicious symptoms. 
The subject of the present experiment is in good condition, of 
middle age, and assumes every aspect of health, putting the dis- 
ease out of the (local) question. The submaxillary glands of the 
nearside have grown, altogether, as large as a hen’s egg ; the 
membrane upon the correspondent side of the septum has that 
red and glistening appearance which betokens the approach of 
ulceration ; indeed, when the light can be made to shew the 
upper part of the septum, an ulcer of a square form and healthy 
aspect is distinctly visible. The discharge from the affected 
nostril is of an aqueous character. 
May 3d . — Let him take, morning and evening, 
Ferri sulphat. 
Potass, subcarb. aa Jss. 
Theriacae q. s. 
4th . — A pimple appears upon the lower part of the septum, 
having a yellow point and transparent aspect. Repeat ball morn- 
ing and evening. 
5^.— Nasal discharge becoming mucous, with some flaky pu- 
rulent matter. Continue ball. 
6th . — Let him take his ball thrice a-day. 
7th . — Two small foul ulcers have formed upon the ala nasi. 
His dung has become of an unusually dark colour, and is voided 
in small balls, leading us to believe that the iron is somewhat 
constringing his bowels. 
8th . — No alteration. Continue ball. 
9th, 10th, 11th . — Let him take two balls morning and evening: 
being two ounces of the vitriol daily. 
