EPIZOOTIC PLEUllO-PNEUMONIA. 
71 
Medicines. — Calomel, opium, camphor, and iodine, are among 
the most energetic. The following are the proportions I have 
generally prescribed : — R Calomel to 3 SS > camphor 3 j to 3 SS, 
opium aj to 3 ss, to be given in thick gruel every six hours, until 
the symptoms are ameliorated, or the animal is mercurialized. 
It is surprising how comparatively little mercury takes effect in 
some animals, and yet others will bear an immense quantity 
without its producing any decided action. In many cases, about 
the third or fourth day its effects will be evident by an increased 
flow of saliva, the gums becoming tender, and a red or pink mar- 
gin round each incisor tooth. If pushed farther, the breath be- 
comes foetid, with diarrhoea, a gloomy desponding appearance, and 
a weak and small pulse : but it never, in this disease, should be 
pushed so far as to produce this latter effect. 
If the bowels are torpid, enemata may be used ; and if irritation 
of the bowels supervenes, the calomel must be intermitted, and 
enemata of thin starch with opium 3 j dissolved in it or pulv. opii 
cum creta. 
In almost every stage of this disease I have found iodine one 
of the jfiost efficient means that can be prescribed for the pre- 
vention of farther effusion into the lungs or chest, and for pro- 
moting the absorption of whatever depositions may have already 
taken place. I generally commence with the following dose : 
R Iodine 3 ss, solution of potash §j, water Oj, every eight hours, 
gradually increasing the iodine, but watching its effects upon the 
bowels. This needs not to preclude a recourse to the above me- 
dicines, but may be given during the interval of their adminis- 
tration. 
During the states of early convalescence, small but frequently 
repeated doses of spirits of turpentine, with powdered gentian and 
chamomile, may be given in thick gruel with great service. 
Bandages of serge or flannel should be applied to the legs. If 
these are intensely cold, they should be well hand-rubbed. If that 
proves ineffectual in restoring warmth, the following liniment may 
be well rubbed in : — R 01. oliv. 4 parts, liquor ammonise 1 part, 
spirit of turpentine 2 parts. Mix. 
It would be a difficult task and useless waste of time to notice 
the treatment of every case ; for the means that are appropriate to 
each are either so manifest, or depend so entirely on circumstances, 
that the medical attendant will readily perceive them and apply 
them accordingly. 
In administering medicine to cattle the most important points 
necessary to be observed are, that it should be given in the form 
of a draught, and put into the mouth in small quantities, the head 
