8 5 6 



Index 



Bacteria, groups of, Chester's 

 synopsis of, 279 



higher, 41 



in air, 58, 283 



quantitative estimation, by 



Hesse's method, 284 

 by Petri's method, 285 

 by Sedgwick's method, 

 286 



in bladder, 85 



in body, 80 



in butter, 297 



in conjunctiva, 82 



in dental caries, 82 



in external auditory meatus, 82 



in feces, 84, 85 



in foods, 296 



in ice, 289 



in intestine, 83 



in larynx, 85 



in lungs, 85 



in meat, 297 



in milk, 296 



in mouth, 82 



in nose, 85 



in oysters, 298 



in sections of tissue, method of 

 observing, 178 



in shell-fish, 298 



in skin and adjacent mucous 

 membranes, 80 



in soil, 294 



Frankel's method of estimat- 

 ing number, 294 



in stomach, 83 



in trachea, 85 



in urethra, 85 



in uterus, 85 



in vagina, 85 



in water, 287 



method of determining num- 

 ber, 287 



Winslow and Willcomb's direct 

 method of enumeration of, 

 288 



influences of antibiosis on growth 



of, 63 



of antiseptics on growth of, 65 

 of association on growth of, 63 

 of chemic agents on growth of, 



65 



of electricity on growth of, 62 

 of food on growth of, 59 

 of light on growth of, 61 

 of moisture on growth of, 59 

 of movement on growth of, 63 

 of oxygen on growth of, 59 

 of reaction on growth of, 61 

 of symbiosis on growth of, 63 



Bacteria, influences of temperature 



on growth of, 64 

 of x-rays on growth of, 62, 63 



invasive power, 89, 94 



isolation of, 246 



Koch's law of specificity, 23 



liquefaction of gelatin by, 70 



living, study of, 172 



measurement of, 200 



metabolism of, 66 



methods of observing, 172 



morphology of, 38 



motility, 35 



non-chromogenic, 71 



non-pathogenic, 76 



nucleus, 34 



of plague group, 597 



parasitic, 79 



pathogenic, 76, 79 



peptonization of milk by, 76 



photographing, 200 



polar granules, 34 



production of acids by, 71 

 of alkalies by, 71 

 of aromatics by, 73 

 of disease by, 76 

 of enzymes by, 77 

 of fermentation by, 67 

 of gases by, 69 

 of nitrates by, 74 

 of odors by, 73 

 of phosphorescence by, 73 

 of putrefaction by, 68 



reproduction of, 36 



saprophytic, 79 



size of, 36 



specific, 339 



sporulation of, 36 



staining, 174. See also Staining. 



structure, 29, 34 



thermal death-point of, deter- 

 mination, 300 



thermophilic, 64 



toxic power, 89 



transplantation of, from culture- 

 tube to culture-tube, method 

 of, 245 



virulence of, 95. See also Viru- 

 lence. 



Bacterial suspension in testing op- 

 sonic value of blood, 308 

 Bactericidal strength of common 



disinfectants, 217 

 Bacterination, 113 

 Bacteriologic syringes, 269 

 Bacteriology, evolution, 17 



of air, 283 



of foods, 296 



of soil, 294 



