696 
Oxygen, essential for certain species of 
bacteria, 172 
influence of, on pigment production, 
133 
on spore formation, 123 
nascent, as a germicidal agent, 172 
PANHISTOPHYTON ovatum, 415 
Paracresol, germicidal power of, 202 
Paralysis, local, caused by diphtheritic 
inoculations, 452 
Parasites, strict, 221 
Parasitic bacteria, 15 
Parietti’s method of separating typhoid 
bacilli from water supplies, 444 
Park and Beebe’s observations on the 
disappearance of the Loffler bacillus in 
cases of diphtheria, 461 
Parrot disease, micrococcus of, 419 
Pasteur’s bacteriological researches, 7 
cholera des poules, 288 
demonstration of living organisms in 
the atmosphere, 615 
discovery of the causation of pé- 
brine, 6 
experiments on the attenuation of 
virus, 150 
on the attenuation of the mi- 
crobe of fowl cholera, 502 
on the etiology of rouget, 515 
on the preservation of putresci- 
ble liquids, 5 
flasks for liquid media, 63 
inoculations of rabbits with hydro- 
phobic virus, 99 
solution, 40, 126 
tubes for the collection of water 
samples, 627 
views on the origin of epidemics, 290 
on rabies, 328 
on the influence of temperature 
on the destruction of organ- 
isms, 5 
Pasteur-Chamberland filter, 60 
Pasteur Institute, production of diph- 
theria antitoxin at, 316 
of Naples, statistics of, 331 
of Palermo, statistics of, 831 
of Paris, statistics of, 331 
of Turin, statistics of, 331 
INDEX. 
Patchouly, antiseptic power of, 203 
Pathogenic anaérobic bacteria, 80 - 
bacteria, list of species found in 
feces, 663 
in milk, 668 
in the mouth, 652, 656 
in the nose, 656 
in the soil, duration of vitality 
of, 645 
in water, 636 
in water, detection of, 640 
organisms, 14 
power of saprophytes dependent on 
quantity and age of cultures and 
site of the inoculation, 529 
spirilla, 590 
Paulsen’s capsule bacillus, 561 
Pear blight, 575 
Pébrine, silkworms infected with, 415 
causation of, discovered by Pasteur, 
6 
not a bacterial disease ? 415 
Pendesche Geschwur, 415 
Pepper, antiseptic power of, 203 
Peptone, a product of bacterial action, 
142 
Peptotoxin, 148 
Peritoneum, injections into, 98 
Peritonitis, bacillus coli communis in, 
535 
Person, disinfection of the, 213 
Petermann’s experiments with filtered 
anthrax cultures, 428 
Petri dishes, 75 
use of, in air analyses, 617 
use of, in water analyses, 630, 
631 
Petri’s sand filter for air analyses, 620 
Petroleum lamps for incubating ovens, 
95 
Pfeiffer’s capsule bacillus, 561 
evidence of his bacillus being the 
specific cause of influenza, 464 
researches into the toxins of cholera 
cultures, 599 
views on the toxin of the typhoid 
bacillus, 367 
Pfeiffer and Issaeff’s method of distin- 
guishing the cholera spirillum from 
other vibrios, 609 
