166 
FRANK S. BILLINGS. 
“ One pig three months old, inoculated February 5, died 
February 14—time nine days.” 
(This last was an aspiration experiment with spray from a 
bouillion cultivation.) 
I have not been able to produce fatal results in less than four 
days, and then, only in one case. A five months’ old healthy 
pig inoculated with a portion of the spleen of the most severe 
case of natural infection that I have yet met with—according to 
the lesions—died on the twentieth day after inoculation. 
In this connection it may be well to mention that the out¬ 
breaks of swine plague in Nebraska have been unusually mild the 
past year, and also to again repeat that'the same germ from dif¬ 
ferent outbreaks differs much in virulent activity. * * * * 
On the 27th of November I visited an outbreak of swine 
plague at Valparaiso, Neb., which was of a most severe type, and, 
so far as necroscopical investigation extended, was characterized 
by pulmonary complications, and those of the lymph glands and 
chief parenchymatous organs. 
The intestines were entirely free from any ulcerative or neo¬ 
plastic products. 
The micro-organism from these hogs was the same as found in 
every other outbreak I have visited, and was also of a very malig¬ 
nant character. A perfectly healthy pig five months old was in¬ 
oculated in the abdominial cavity with six fluid grammes of a 
sterilized peptonized bouillion cultivation of this germ and died 
in about twenty-four hours, I must admit totally unexpectedly on 
account of previous experiences. Its blood and spleen were found 
to be swarming with the specific organism. 
There was not a single serious organic lesion in the animal 
with the exception of the lymph glands, which were much 
swollen, moist and full of hemorrhages, which gave to the cut sur¬ 
face the same appearance as is seen in a large strawberry when 
cut in two. 
I do not yet know whether this peculiar appearance of the 
lymph glands, as seen in all acute, or severe cases, of swine plague, 
can be considered as really pathognomonic to that disease or not, 
as I have not had sufficient experience in other porcine maladies 
