156 PHYSIOLOGY OF THE BACTEEIA. 



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 " phlogogene " 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 

 "phlogogene;" 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. 1 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. 



