INDEX 



1023 



Microorganisms, dissemination of, 677 

 effect on body, 680 

 elimination from body, 678 

 entrance into air, 304 

 facultative anaerobic, 228 

 of faeces, 597 

 filtrable, 119, 66 1 

 food of, 221 

 in food, 516 

 in food poisoning, 584 

 on grapes, 604 

 heterotrophic, 223 

 holophytic, 196 

 holozoic, 196 

 of intestine, 596 

 kinds in air, 303, 307 



in canned food, 528 



in cream, 476 



in milk, 444 



in sewage, 330 



in soil, 350, 360 



in water, 311 

 in lactic acid, 651 

 of leather, 655 

 metabolism of, 195 

 methods of study in soil, 370 

 Microspira comma in water, 314 

 in milk, 430 



certified, 432 



special, 432 

 molds in soils, 360 

 morphological groups in soil, 370 

 of mouth, 593 

 nitric, 390 

 nitrous, 390 



normal development in milk, 460 

 number in air, 306 



in concentrated milk, 506 



in cream, 476 



in ice cream, 513 



in milk, 429 



in soil, 367 

 nutrition of, 195 

 obligate aerobic, 228 

 obligate anaerobic, 228 

 occurrence in air, 304 



Microorganisms in olives, 573 

 oxygen relations, 225 

 parachrome bacteria, 246 

 parasitic, 196 

 pathogenic, 338 



in butter, 485 



in milk, 452, 468 

 period of incubation in body, 680 

 photogenic, 251 



physiological group in soil, 370 

 physiology of, 145 

 of plant diseases, 949 

 products of activities, 230 

 propionic, 610 

 prototrophic, 223 

 protozoa in soil, 364 

 putrefactive in sewage, 332 

 in rain, 316 

 reactions on body, 680 

 of retting, 658 

 in rivers, 318 

 saprophytic, 196 

 saprozoic, 196 

 in sauerkraut, 570 

 in sea water, 318 

 in sewage, 330 

 sewage streptococci, 313 

 of silage, 576 



slime-forming in wine, 610 

 in snow, 317 

 in soil, 367 

 in soil fertility, 345 

 soil bacteria in water, 312 

 sources in milk, 434 

 spores in canning, 536 

 of stomach, 596 

 subsidence in air, 305 

 in sugar production, 580 

 thermal death-point of, 275 

 thermophilic, 271 

 typical forms in sewage, 330 

 in udder of cow, 434 

 in upland waters, 318 

 of vinegar, 636 

 in water, 310 

 in wells, 317 



