684 



INDEX 



Pyocyaneus bacillus, 363. See 



Pseudomonas seruginosa. 

 Pyogenic bacteria, common, 345- 



368 

 less common, 368 



REACTION, adjustment of, 111-124 



Barnett and Chapman, 120 



changes in, 215 



hydrogen-ion concentration, 115- 

 124 



litmus as indicator, 111 



pH values, 115-124 



titration method, 113-115 

 Receptors, 301 

 Recklinghausen, 27 

 Reduction by bacteria, 223 

 Regulators, pressure, 164 



thermo-, 160-163 

 Resistance, 277 

 Rhinitis, membranous, bacteria of, 



494 



Rindfleisch, 26 

 Rosenbach, 268 

 Roux and Yersin, 290 



S 



SALIVA, study of, 403 . 

 Sanderson, 29 

 Saprogenic bacteria, 37 

 Saprophytic bacteria, 34-35. 

 specific functions of, 36-40 

 chrompgenesis, 37 

 denitrification, 39 

 nitrification, 38 

 nitrogen fixing, 39 

 photogenesis, 37 

 saprogenesis, 37 

 thiogenesis, 38 

 zymogenesis, 38 

 Sarcina, 68 

 tetragena, 421 



cultivation of, 422 

 discovery of, 421 

 inoculation of, 423 

 morphology of, 421 

 Schaefer, 334 



Schizomycetes, 33 



Schroder and Dusch, 23 



Schulze, 23 



Sedgwick and Tucker, 663 



Septicemia, sputum, 404 



Serial tube method of separation, 



155 



Serum, blood. See Blood serum. 

 Serum-water media of Hiss, 143 

 Sewage streptococci, 659 



presence of, in water, 660 

 Skin disinfection, 343 

 Smear cultures, 167 

 Smegma bacillus, 449 

 Soil, bacteria in, 665 

 isolation of, 665 

 Spallanzani, 30 

 Species, types of, 203 



variations of, 199 

 Spirilla, 67-70 



Spirillum of Asiatic cholera, 549- 



574. See Cholera, bacteria of. 



Metchnikovi, 574. See Micro- 



spira Metchnikovi. 

 Schuylkilliensis, 580. See Micro- 



spira Schuylkilliensis. 

 Spirochsetacese, 629-636 

 classification of, 629-630 

 definition of, 629 

 detection of, 632 

 in smears, 632 

 in tissues, 634 

 genera of, 630 

 leptospira, 631 



ictero-hemorrhagiae, 631 

 icteroides, 631 

 spironemia, 630 



in relapsing fever, 630 

 treponema, 631 

 pallada, 631 

 pertenue, 631 



Spironema of relapsing fever, 630 

 Spores, discovery of, 24 

 formation of, 72-74, 211 

 methods of study, 209-213 

 staining of, 186 

 Sputum, bacteria in, 401-403 

 Stab cultures, 167 

 Staining, 176-190 

 cover slips, 172, 632 

 methods, 176 

 acetic acid, 185 



