436 



Index 



Rickettsia 



akari, 384, 387 



CO nor a, 384 



mooseri, 354 



proivazeki, 355, 379 



quintana, 388 



rickettsia, 384 



tsutsugamushi, 354, 384 



typhi, 354, 384 

 Rickettsiae 



classification of, 383 



control of, 390 



cultural requirements, 380 



diseases caused by, 384-389 



historical introduction to, 378-380 

 . laboratory diagnosis, 389-390 



morphology, 380 

 Rickettsial pox, 384, 387, 390 

 Ringwonii, 366 

 Rivers as water sources, 224 

 Rivers, T. M., 397 

 Robinow, C. F., 104 

 Rocha-Lima, 380 

 Rocking, effect of on bacteria, 172- 



173 

 Rocky Mt. spotted fever, 354, 379, 



380, 384, 385, 390 

 Roentgen rays, 169 

 Ropv milk and bread, 99-100 

 Ross, R., 349, 353 

 Roux, 181 

 Roval Society of London, 9, 12, 13, 



i5 

 Rubella, 405 

 Rubeola, 405 

 Ruehle, G. L. A., 256 

 Rugaceae, 403 



S.A.B., see Society of American Bac- 

 teriologists. 

 Saccharomijces 



cereviseae, 372-375 

 eUipsoideus, 375 

 Salmonella 



food infection, 287-288 

 gram staining reaction of, 110 

 schoftmulleri, 351 

 tifphimurium, 288 

 typhosa 



bacterins for, 324 

 description of, 342-344 

 effect of freezing on, 157 



Sahnonella, in roaches, 352 

 in sewage, 247 

 pH limits for growth of, 69 

 phage typing of, 401-402 



Salt 



formation in disinfection, 208 

 in Great Salt Lake, 166 



Sand beds, 245 



Sanitary pit privies, 239-240 



Saprophytes, 61 



Sarcina )utea, 91, 110, 275, 332 



Sarcoptes scabiei, 354 



Sarles, W. B., 99, 244, 246 



Savoiaceae, 403 



Scarlet fever, 332 



Schaudinn, 345 



Schick, B., 318 



Schick test, 318, 337 



Schizomycetes, 53, 54, 56, 85, 393 



Schizosaccharomyces, 371 



Schloesing, 175 



Schmutzdecke, 228-230 



Schroeder, 27 



Schroeter, J., 46 



Schultze, F., 26 



Schwann, T., 27, 32, 33 



Scrub typhus, 384, 386 



Secondary infection, 300 



Seitz filter, see filtration 



Selective media, 123-124 



Septa in molds, 359 



Septicemia, 301, 333 



Septic sore throat, 332 



Septic tank, 241-242 



Serology, 135-136 



Serratia marcescens, 178-179 



Sewage disposal, 238-250 



diseases transmitted by, 247-248 

 types of systems for, 239 

 activated sludge, 245-246 

 cesspools, 240-241 

 contact beds, 242-244 

 Imhoff tanks, 242-243 

 sand beds, 245 

 sanitary pit privies, 239-240 

 septic tanks, 241-242 

 settling tanks, 244 

 trickling filters, 245 



Sex in bacteria, 85 



Sexual reproduction of yeasts, 373 



Shakespeare, W., 188 



