156 PHYSIOLOGY OF THE BACTERIA. 
Having injected into a rabbit two drops of blood 
from a man who died of pulmonary gangrene, the 
animal died at the end of twenty hours. Nu- 
merous bacteria were found in its vessels. The 
liquid extract of these, injected into other rabbits 
produced death in twenty-four hours, and the 
same parasites were observed in their blood. 
According to Henrot the bacteria penetrate 
by the pulmonary mucus membrane, and only act 
in contact with blood rendered “ phlogogéne” by 
pus. There is then a necessity for two producing 
causes. In support of his opinion the author cites 
the following experiment. He injects into the 
jugular of two rabbits a mixture of distilled water 
and pus, for the purpose of rendering the blood 
“ phlogogéne;” in two others he injects pulverized 
coral suspended in water. One of the first rabbits 
and one of the second, placed in a pure air, resist 
perfectly. The two others are subjected to ema- 
nations from putrefying “anatomical” fragments. 
The rabbit into which pus had been injected died 
in three days, the second was still living at the end 
of a month. 
Cavafy admits the presence of bacteria in 
septic liquids, but does not regard them as the 
efficient’ cause of the thromboses following in- 
oculations. According to Moritz Traube and 
Gschleiden, living organisms into which one in- 
jects blood containing a great quantity of the 
bacteria of putrefaction, do not suffer any dur- 
able harm from the injections.'. At the end of 
1 I have injected various liquids containing bacteria into the circula- 
tion of dogs and into the cellular tissue of rabbits, but have never seen 
any serious results follow such injections. —G. M. S. 
