INDEX. 
Bacillus, typhi abdominalis (see Typhoid 
Bacillus), 486 
murium, 524 
typhosus, 431, 436 
ures, 140 
der Wildseuche (Hueppe), 499 
X (Sternberg) from yellow-fever ca- 
davers, 538 é 
Bacteria, a distinct class of vegetable 
organisms, 11 
action of acids on, 180 
of alkalies, 183 
of coal-tar products, 197 
of gases, 172 
of the haloid elements, 172 
of salts, 186 
chemical composition of, 124 
classification of, 10 
conditions of growth of, 125 
culture media for, 37 
dependent on pabulum, 153 
dimensions of, 20 
influence of pressure on growth of, 
163 
of physical agents, 153 
of one species on the growth of 
another, 128 
mistaken for infusoria, 3, 10 
modes of grouping, 20 
modifications of biological charac- 
ters, 129 
morphology of, 20 
motions of, 117 
the photographing of, 103 
probably seen by Leeuwenhoeck, 3, 10 
products of vital activity, 133 
acids, 137 
butyric acid, 138 
fermentation, 136 
fermentation, alkaline in urine 
141 
phosphorescence, 145 
a possible nucleus in, 117 
reproduction of, 117 
rapidity of reproduction, 120 
structure of, 117 
thermal death-point of, 155 
varieties of, 117 
vitality of, in moist atmospheres, 
159 
679 
Bacteria in the air, 613 
number of relatively unimpor- 
tant, 624 
in articles of food, 667 
in croupous pneumonia, 396 
in diphtheria, 449 
in the dust of city streets, 646 
in the soil, methods of studying, 642 
action of, on buried pathogenic 
bacteria, 645 
number of, in various localities 
and at various depths, 643 
of graveyards, 643, 646 
in water, 626 
species very numerous, 636 
distilled, 125 
of cadavers and of putrefying ma- 
terial from various sources, 664 
of plant diseases, 571 
of the skin and exposed mucous 
membranes, 648 
species found on, 649 
of the stomach and intestine, 658 
nitrifying, 144 
non-pathogenic, thermal death-point 
of, 157 
parasitic, 127 
pathogenic, fatal dose of, 242 
modes of action of, 219 
Bacteriacee of Zopf, 12 
Bacterial diseases, immunity afforded by 
an attack, 243 
Bactéridie du charbon, 423 
Bacteriology, literature of, & 
early progress of, 6 
Bacterium aéruginosum, 542 
coli commune (Escherich), 516, 529 
of Davaine’s septicemia, 499, 500 
of Ehrenberg, 3, 10 
termo, 548 
Barium chloride, antiseptic value of, 188 
Baumgarten, bacilli of, 12 
classification of bacteria, 12 
on the influence of Koch’s tubercu- 
lin, 364 
Bedding, disinfectants for, 213 
Beef extracts as culture media, 41 
Beggiatoa, sulphur in, 24 
Behring’s discovery of the antitoxins, 8 
antitoxin of diphtheria, 314 
