226 
EXPERIMENTAL PATHOLOGY. 
What the result will be, time only will tell. It was feared at the 
time of the operation that another growth would make its appear¬ 
ance at the end of the stump, but no signs of such were apparent 
when last seen. 
This case is not reported to simply describe the operation, for 
that in itself was very simple, but to show that we can never be 
too careful in our prognosis when about to operate upon growths 
of this nature. 
EXPERIMENTAL PATHOLOGY. 
THE BLOOD DESTROYS BACTERIAS. 
By Fodoe. 
The author injected cultures of anthrax bacterias into the 
jugular vein of a rabbit, and having killed the animal, used the 
blood from the heart in the preparation of other cultures. He 
obtained only negative results, as in about one minute the bac¬ 
terias had already entirely disappeared from the blood. 
He then placed the blood taken from the heart of a rabbit, 
immediately after death, in a large test tube, which he kept at a 
temperature of 38°, and added to it ten drops of an anthrax cul¬ 
ture. Ten minutes later the tube contained a liquid which gave 
cultures extremely rich in bacterias ; in thirty minutes the blood 
had already lost a portion of its properties, and after the lapse of 
an hour or two the cultures produced became poorer and poorer. 
On the contrary, gelatine, inoculated at the same time with the 
blood, and with the same anthrax bacilli, at the same tempera¬ 
ture of 38°, preserved its power of reproduction uniformly for 
two hours. 
The blood taken in a fresh state had thus destroyed, not 
indeed all the anthrax bacilli, but a large portion of them. This 
destructive power, however, has only a limited continuance, and 
if a lapse of eight days be allowed before the examination, the 
result will be the production of an enormous mass of bacilli and 
spores. 
The destructive effect of fresh blood upon the anthrax bacilli 
