TREATMENT OF CANKER. 
271 
imperceptible, coat unthrifty in appearance ; and the finest 
cattle are first affected. From the contractors I hear that it 
is also raging in Mongalia, in Prussia, and in Austria. It 
has been very rife at this place and the one above named, 
also at Zissopolis (Commissariat Stations). 
Believe me, 
Yours, &c. 
ON THE TREATMENT OF CANKER. 
By G. Armatage, V.S., Sheffield. 
“An Old Pupil” inquires, in your number for March, 
for the best mode of treating canker. If the following should 
prove a beneficial addition to his usual plan of treatment, or 
be of any service whatever to him in his troublesome task, 
I shall be amply rewarded. 
As it regards Dressings . — Your querist enumerates a goodly 
number of remedial agents which he has employed, but, as 
he says, too often with disappointment. I can fully sym- 
pathise with him in that respect. Judging, from their 
omission, that the following have not been used by him, 
I therefore briefly give them. 
Acetate of lead, made into a paste with nitric acid, and 
plentifully applied to the exuberant growths, will be often 
found of great service. It, however, requires to be frequently 
used. 
The sesquichloride of antimony also deserves mention, to 
be alternated with the above. 
The bichloride of mercury, dissolved in hydrochloric acid, 
has produced very remarkable effects. The proportions used 
are : 
Hydrarg. Bichlor., jiv ; 
Acid. Hydrochlo., f5iv ; 
Aquse, f|xx. 
It is applied by means of some tow, on a stick. 
The protochloride of mercury, applied in the state of pow- 
der, giving pressure by means of the shoe, or otherwise, has 
often afforded so much benefit, as to warrant further trials of it. 
Mechanical Means . — No practitioner, I think, in attempting 
to cure a cankered foot, will rely solely upon simple dressings ; 
mechanical pressure being their concomitant, and of the 
utmost importance. This may be obtained in two ways. 
The most simple is that of paring down the crust or wall of 
