ON THE HOOVE IN CALVES- 
37 
making the animals respire or breathe certain exhalations given 
off from medicinal substances in a state of vaporisation, whereby 
it comes into direct contact with the parts in which these little 
insectile bodies are lodged. My first plan of proceeding is, when 
you have a number of calves with the hoose (arising from worms 
in the windpipe) well defined, and not caused from catarrh, or an 
inflammatory action of these parts, to pour into the nostrils of 
each two tea-spoonsful of the following mixture, first elevating the 
nose in an horizontal position,—sulphuric aether, 2 oz.; rectified 
oil of amber, 1 drachm. You may occasionally vary this by add¬ 
ing, instead of oil of amber, the same proportion of oil of turpen¬ 
tine, or oil of tar. Repeat this every second or third day for three 
or four several times. The modus operandi of this compound is 
from the heat of the nasal tube evaporating the mixture, when by 
respiration it is conveyed into the air passages. I have seen 
calves worn down to almost perfect skeletons from the irritation 
produced by this distressing malady, yet have soon recovered 
from only one or two applications of the beforementioned mixture. 
The second plan is that of putting any number of calves into a close 
house, and allowing them to inhale the fumes of tar or the smoke 
of tobacco in the following manner :—Make a fire shovel to a dull 
red heat, enter the house in which the animals are confined, pour 
some tar on the hot iron gradually from a cup, and fill the house 
with the vapour of the same; and as soon as it excites sneezing or 
coughing, leave it off, shut the door, and confine the calves there 
for an hour: repeat this every day for several times. I have 
added also occasionally a small portion of sulphur with the tar, 
which, I think, has increased its efficacy; this has often in my 
practice proved an effectual cure: it is easily to be done, and of 
but little expense; sometimes, do what you will, it is attended 
with only a little benefit. I have known them to as quickly dis¬ 
appear from their habitation in those animals as they have ap¬ 
peared, from some unknown cause. The internal medicine 1 am 
in the habit of administering is the spirit of turpentine mixed in 
thick gruel, in doses of one or two ounces occasionally; but my 
chief reliance is on inhalation. 
The cutaneous disease which your yearlings are labouring un¬ 
der I have frequently seen. You have called it the ringworm: 
I do not know that you could have given it a more apt term. It 
occurs in various parts of the body, more especially about the 
sides of the face, neck, and shoulders; the appearance of the 
patches may be seen at some distance from the animal, in the form 
of circular and oval rings, having a dry branny look, thin, and 
nearly devoid of hair. Your treatment should consist of the inter¬ 
nal exhibition of sulphur, and daily to anoint the bald places with 
