MALARIA IN HORSES. 
137 
* 
She was put on 3 h f. e. nux vom. daily, in three doses, 
before feeding. The next day she appeared to be much bet¬ 
ter, ate ravenously, and ran about in the yard. But the 
second day she ate nothing; the third day seemed better ; 
the fourth day, apparently well ; and so on, until the period¬ 
icity was noticed. 
At my suggestion, her actions were more carefully noted 
from day to day, until it became evident that every third day, 
at about 7 A.M., she had a severe chill, followed by rise of 
temperature ; that the following day she would have a slight 
chill, but would brighten up about noon and begin to eat, and 
that the intermediate day she would be all right. 
I diagnosed malaria about the 18th of July, and wanted 
to begin the treatment at once, but when the time came the 
animal seemed better, and the owner wished to wait a little 
longer. 
Regularly enough, however, on the morning of the 21st, 
the heavy chill came on, and on the evening of the 22nd, 
after the light chill had passed off, I gave 3 i of calomel, fol¬ 
lowed in a half hour by one pint of castor oil. 
On the 23rd, the well day, beginning at noon, I had a half 
ounce of quinine and 3 ij of f. e. digitalis given in five doses, two 
hours apart. Had the satisfaction of seeing her miss the heavy 
chill the next morning. The same doses were repeated, and 
the light chill was omitted. I then put heron 3i of cinchoni- 
dia, 3 ss. doses of nux vomica, three times daily, with the re¬ 
sult of a complete recovery. 
The outcome of the treatment seemed to confirm the diag¬ 
nosis, but the form of intermission was still entirely new to me. 
Afterward I found a number of different forms of malaria 
described by Bartholow, in his “ Practice of Medicine.” 
First, he describes the simple forms,—the quotidian , or 
every day intermitting form ; the tertian , or every other day 
form ; and the quartan , with two days free from fever. 
Next he speaks of the doubled forms, where two series of 
intermissions obtain at the same time. Among these, the dou¬ 
ble quartan has a severe paroxysm one day, a light paroxysm 
the next day, and a day without fever. This describes our 
case exactly. 
