352 
ON DIN IODIDE OF COPPER. 
“ run” so much as the ordinary compound, and the bulk of the bail 
is lessened. 
Take of Aloes in small pieces. 8 parts 
Hard Soap, sliced. 1 part 
Water. 1 part 
Melt together in a water-bath. 
Any loss of water by evaporation is to be made up after the melt¬ 
ing has become perfected, and then, should it be deemed necessary, 
a little essential oil, as that of caraway-seeds or anise, may be 
added. 
It will at once be seen, that the substances combined with aloes, 
for the sake of the requisite consistency, amount to one-fifth of the 
mass; so that by an easy calculation a definite quantity of aloes 
may at any time be given. 
The addition of soap to aloetic compounds has been objected to 
by some practitioners, on the grounds that, by it, the action of the 
purgative agent is diverted to other organs, for instance, to the kid¬ 
neys. Soap, however, acts but slightly as a diuretic, and in large 
quantities it becomes a laxative. Here the quantity is so small 
that I cannot think it will materially affect the operation of the 
compound. 
The alkalies have been said to diminish the purgative effects of 
aloes by rendering it less irritating, while they increase the solu¬ 
bility of the extract, and cause it no longer to act specifically upon 
the large intestines; changes which are sometimes desirable. 
My having been instrumental in bringing this kind of aloes be¬ 
fore the profession, will be accepted as an earnest of my endeavours 
to aid in the onward progress which the science of veterinary me¬ 
dicine is now making. 
Those who may hereafter use this extract, or those who already 
have employed it, would confer an obligation on the members of 
the profession by communicating the results of their experience. 
Improvements, doubtless, may be made; and I can only say, that I 
shall be happy to avail myself of any suggestion which will tend 
to accomplish this. 
ON THE POWER OF THE DINIODIDE OF COPPER, 
WHETHER INTERNALLY OR EXTERNALLY 
APPLIED. 
By the same. 
In addition to the kind and friendly testimony of Mr. Mayer as 
to the influence of the Diniodide OF COPPER on the animal eco¬ 
nomy, I have received many others corroborative of its powerful 
and beneficial action. 
