INDEX 
Storage of food in tin cans, 513 
Storch’s method for heated milk, 371 
Strassburger method for fecal bacteria, 
250 
Streaming steam sterilization, 126 
Strength of yeasts, 220 
Streptococci in water, 297 
Structure of eggs, 453 
—— — hyphe, 212 
Structure of molds, 202 
Substage on the microscope, 27 
Sugar in food preservation, 503 
Sullivan’s culture fluid, 64 
Swells in canning, 510 
Synthetic agar, 49 
T 
Teague and Clurman’s eosin-brilliant 
green agar, 54 
— — — method for B. typhesus in feces, 
257 
—— Travis’ method for M. cholere in 
feces, 258 
Temperature of milk, 378 
— relations of bacteria, 112 
Theory of pasteurization, 415 
— — staining, 79 
Thermal death point, 118 
Thymol, disinfectant, 141 
Tin cans, 509 
Tobacco smoke, effect on mouth bac-~ 
teria, 228 
Toleration of bacteria to acids and 
alkalis, 118 
Torrey’s anaerobic method, 19 
Total acidity of the stomach, 233 
Toxicity coefficient of disinfectants, 175 
Toxin of Bacillus botulinus, 533 
Tracing pollution in water, 323 
Transporting bacteriological specimens 
in the U. 8. mail, 577 
Treasury Department Standard for 
water examination, 311 
True yeasts, 213 
Trypsin broth, 45 
Tryptagar, 49 
Tryptophane, bromine reaction, 192 
— broth, 47 
591 
Tryptophane, decomposition of, 244 
~—, structure, 186 
Tubercle bacilli in butter, 425 
Turbidity, determination in water, 278 
Typhoid bacilli in ice, 338 
—— death rate in American cities, 271 
-—~ fever case record, 548 
-— —- from oysters, 487 
~~ — in Pittsburgh, 268 
Tyrosine, Decomposition, 243 
—, structure, 185 
U 
Ultra-violet light, action on microor- 
ganisms, 130 
Urine medium, 58 
Uschinsky’s medium, characteristics of 
bacteria in, 112 
Use of the microscope, 24 
Utensils influencing milk production, 377 
Vv 
Valine, 185 
Van Delden’s solution, 64 
Van Ermengen’s procedure for staining 
flagella, 86 
Vegetable bouillon, 46 
Vegetative cells, 109 
Ventilation tube, 220 
Vincent’s method for tomato products, 
528 
Voges-Proskauer reaction in water anal- 
ysis, 307 
WwW 
Ward’s classification of water bacteria, 
288 
Water bacteria, classification, 286 
Water-borne epidemics of disease, 541 
— drinking and bacteria in intestines, 
237 
Welch’s method for staining capsules, 84 
Whey agar, 71 
— gelatin, 55 
White corpuscles, enumeration, 15 
Wiley’s method for streptococci in ice 
cream, 437 
