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COMMUNICABILITY OP ASIATIC CHOLERA. 
I. Natural Effects of Cholera on Animals, 
In briefly reviewing our accumulated knowledge of re- 
puted natural effects of cholera on the higher animals, we 
would, in the first place, dismiss, with the most passing 
notice, the numerous conjectures which are to be found in 
professional as well as non-professional records, as to the 
relation between the cholera and recent great and widely- 
spread epizootics, which have occurred, in almost every 
country, either before, concurrently with, or after the in- 
vasions of the human pestilence. The widest and best known 
of these have been either influenza-like, catarrhal, dysenteric, 
or pustular in their character, and are identical with visita- 
tions previously well understood. The pleuro-pneumonia 
which has raged on the continent, and, since 1838, in this 
country, as so fatal an epizootic, and the typhoid disease of 
modern date, cannot by any but the most rude analogy be 
associated with human cholera. 
In the next place, we would advert at somewhat greater 
length, but with equal reserve, to certain more partial or dis- 
tinctly localised epizootics, which have been noted in districts 
or towns of India and Europe, contemporaneously with the 
human pestilence. Thus, in the Marquis of Hastings’ 
army, in 1818, on the banks of the Sutlege, great numbers 
of oxen are said to have died, during the prevalence of cho- 
lera, suddenly, and from unknown causes. In the hilly dis- 
tricts, according to Chalmers, cholera being then very fatal 
in the towns, cattle died even in a greater ratio than the 
people. In Rajpootana, according to Ranken, camels, and 
especially goats, died of diarrhoeas and other ailments ; and, 
on the authority of Mr. Searle, the same thing occurred in 
the Madura and Coimbatore districts. The disease among 
the poultry, in Mr. Searle’s compound, may also be noticed 
here : and we are informed, by an intelligent officer in the 
Indian army, that in 1832, at Rajahmundry, on the Godavery, 
all his ducks and geese died, with symptoms, which he and 
his native servants supposed to be truly choleraic. In 
Calcutta, in 1 827, numbers of dogs died in the streets with 
choleraic symptoms ; at Charcolly, also, fifteen-sixteenths of 
the dogs perished in the same way, during a second visitation 
of the disease ; and at a later period, half the dogs in Madras 
died, with vehement vomiting, and purging. At Macassar, 
in Amboyna, about the year 1818, monkeys, dogs, and oxen 
perished under similar circumstances ; whilst, quite recently 
(1849), horses died, as it was said, of cholera, at Penang, in 
great numbers. Merely glancing at the piscine mortality 
