Index 



693 



Bacteria, conditions essential to 

 growth, 40 



prejudicial to growth, 41 

 cultivation, 192 

 definition, 28 

 determination, 244 

 distribution, 39 

 division according to activity, 



47 



fission of, 32 

 grouping, 29 

 groups of, Chester's synopsis 



of, 245 

 growth of, conditions essential 



to, 40 



prejudicial to, 41 

 higher, 38 

 in air, 39 



quantitative estimation, by 



Hesse's method, 250 

 by Petri's method, 251 

 by Sedg wick's method, 



252 



in bladder, 66 

 in body, 61 

 in conjunctiva, 63 

 in external auditory meatus, 63 

 in feces, 65, 66 

 in intestine, 64 

 in larynx, 66 

 in lungs, 66 

 in milk, 262 

 in mouth, 63 

 in nose, 66 

 in sections of tissue, method of 



observing, 157 

 in skin and adjacent mucous 



membranes, 61 



in soil, Frankel's method of esti- 

 mating number of, 260 

 in stomach, 64 

 in suspensions, Wright's method 



of computating, 255 

 in tissue, Gram's method of 



staining, 160 

 in trachea, 66 

 in urethra, 66 

 in uterus, 66 

 in vagina, 66 

 in water, method of determining 



number, 253 



Winslow and Willcomb's 

 direct method of enumera- 

 tion of, 254 

 influences of antibiosis on growth 



of, 44 

 of antiseptics on growth of, 



46 

 of association on growth of, 44 



Bacteria, influences of electricity 



on growth of, 42 

 of light on growth of, 41 

 of moisture on growth of, 41 

 of movement on growth of, 44 

 of nutriment on growth of, 40 

 of oxygen on growth of, 40 

 of reaction on growth of, 41 

 of symbiosis on growth of, 



44 

 of temperature on growth of, 



45 



of x-rays on growth of, 42 

 invasion power, 70, 75 

 isolation, 213 



liquefaction of gelatin by, 51 

 living, study of, 151 

 lophotricha, 31 

 measurement, 172 

 methods of observing, 151 

 monotricha, 31 

 morphology, 35 

 motility, 31 

 non-chromogenic, 52 

 non-pathogenic, 57 

 of acute local infective diseases, 



284 



of dental caries, 63 

 of phlogistic diseases, 284 

 of specific diseases, 286 

 parasitic, 60 

 pathogenic, 57, 60 

 peptonization of milk by, 57 

 peritricha, 31 

 phosphorescent, 47 

 photographing, 172 

 production of acids by, 52 



of alkalies by, 52 



of aromatics by, 54 



of disease by, 57 



of enzymes by, 58 



of fermentation by, 48 



of gases by, 50 



of nitrates by, 55 



of odors by, 54 



of phosphorescence by, 54 



of putrefaction by, 49 

 proposed synopsis of groups, 245 

 reduction of nitrates by, 55 

 reproduction of, 32 

 saprophytic, 60 

 size of, 32 

 sporulation of, 33 

 stained, study of, 153 

 structure, 30 



thermal death -point of, deter- 

 mination, 266 

 thermophilic, 45 

 toxic power, 70 



