378 
EXPERIMENTAL PATHOLOGY. 
membranes, or cocci or bacterias obtained by cultures. Upon the 
conjunctiva and the trachea some little false membrane, either 
loose or adherent, was produced, the specific nature of which is 
very doubtful. 
In blood cultures Fenzoldt has seen diverse bacilli, some anal¬ 
ogous to those of tuberculosis, other virgnle-shaped, and still 
others curved like an S. They were very small cocci. A pigeon 
inoculated with these cultures was affected with paralysis of the 
wings and legs, and died after three weeks. 
Penzoldt asks if diphtheria is a disease of uniform character, 
or if it may not be the result of different pathological factors, 
alike only in the clinical manifestations which they produce.— 
Ibid. 
ON THE PASSAGE OF BACILLI THROUGH THE KIDNEYS. 
By Fr. Schweitzer. 
To ascertain whether bacterias may pass through the kidneys, 
the author has experimented upon animals by. injecting in the 
blood a bacillus obtained from the pus of ozena, coloring gelatine 
and agar in green. He calls it the green bacillus. He injected 
it in the renal artery, and examined the urine taken from a fistula 
through the ureters. Cultures of this urine proved fertile. Sim¬ 
ilar results were obtained with the rabbit and the cat. 
He then removed one kidney, and when the animal had re¬ 
covered and the other kidney became hypertrophied he injected 
the bacillus into the carotid. IJrine taken from a fistula of the 
ureters in this case also gave fertile cultures. 
To ascertain whether micro-organisms can pass from the 
urinary canals into the blood, an injection of the green bacillus 
was made into the left ureter, and cultures made with blood from 
the right kidney proved fertile. This experiment proves that 
bacilli and micrococci can readily pass into the blood when once 
they have reached the pelvis of the kidney. But by what route 
do bacilli pass from the blood into the urinary tracts ? Sections 
of the organ show that the micro-organisms are always abundant 
in the glomerules and in the space existing between them and the 
capsule of Bowman, as well as in the blood vessels and at the be- 
