TO DOMESTICATED ANIMALS. 
393 
was purged during the first night of black and white faeces 
covered with yellowish froth, and gradually recovered the fol- 
lowing day. 
Ex. 7.— Blood 20 minutes: 4| drachms into a dog. 
Symptoms similar, but not so severe. Recovery on follow- 
ing day. 
To these observations we attach only a small significance ; 
for one could hardly expect less from the introduction of 
a like amount of dead blood, charged with the products of its 
own decomposition within and without the body from which 
it had been taken. Magendie,* Gaspart, Trousseau, Leuret, 
and others,t taid already shown, that even ten or twelve 
drops of putrid animal matter, injected into a dog’s veins, 
would cause prostration, excitement of the pulse, hard respi- 
ration, and a black or bilious vomiting. 
Nor can we trace any choleraic symptoms to the accidental 
or intentional inoculations of the human being with fresh 
cholera-blood drawn from living patients. Thus, a complete 
immunity from mischief was experienced after the contact of 
recent cholera-blood with wounds of the fingers, by Dr. 
Sokolov, of Orenburg, often whilst bleeding his patients ; by 
Schmidt, who during an experiment had the blood in contact 
with a fresh wound for ten minutes; and by Dr. Molison, 
at Newcastle, who pricked himself with a lanced just used in 
a very decided case of cholera. The negative results of the 
self-inoculations of Dr. Foy, at Warsaw, of Dr. Jannichen, of 
Dresden, and of MM. Veyrat and Pinel, are also well known. 
Fruitless inoculations with fresh cholera-blood was made 
on animals at Warsaw.^ Namias inserted perfectly fresh 
cholera* blood under the skin of two rabbits, in the way 
already mentioned, but without any evil result. Calderini 
inoculated a dog and tw T o hens with cholera-blood yet warm, 
from a patient in the algide stage of the disease, also with- 
out any bad consequences. Eichstedt obtained no effects 
from the administration of some fresh cholera-blood to a 
rabbit by the mouth. Dr. Schmidt injected 13 grammes 
(3^- drachms) of fresh defibrinated blood of a cholera patient, 
(who had had diarrhoea for twenty-four hours,) into the 
external jugular of a cat, wdiich had already been confined in 
a box charged with the vapours of cholera-blood and dejec- 
tions. In two hours the animal ate, played about, and 
continued well until the fourth day, when it was let loose. 
No vomiting occurred ; faeces natural. Meyer injected into 
the external jugular of a large dog, about two drachms of the 
* Lemons sur le Cholera, 1832, p. 138, et seq. 
t Gaz. Med.de Paris, 1849, p. 73. J Rapport de l’Acad.; Paris, 1832. 
XXVI. 52 
