494 INDEX. Solution, Ehrlich's, for staining bac- teria in tissue, 97 Solutions, disinfecting, useless ness of, in the sick-room, 118 staining-, 92 Sozins, 78 Spirilla, 39 morphology of, 39 of Philadelphia waters, 344 resembling the cholera spirillum, 326 Spirillum aquatilis, 341 Berolinensis, 335 Bonhoffi, 339 cholera Asiatica, 313-319 characteristics of, 319 cultures of, 315-318 differentiation of, in cultures, 323. 324 distribution of, 319 in drinking-water, means of detecting, 323 inoculation forms of, 314 production of indol by, 319 resistant powers of, 322 staining of, 315 toxic products of the metab- olism of, 319 Danubicus, 337 Denecke, 330 cultures of, 330 Dunbar, 337 Finkler and Prior, 326 cultures of, 327, 328 staining of, 329 Gamaleia, 332 cultures of, 333, 334 of Gamaleia, differentiation of, from spirillum of cholera, 335 pathogenesis of, 335 Metschnikoff, 332 Milleri, 341 of Asiatic cholera, 313—319 terrigenus, 342 Weibeli, 340 I. of Wernicke, 338 II. of Wernicke, 338 Spirochaeta, 39 Spirpchasta febris recurrentis, 431 Spiromonas, 40 Spirulina, 40 Spleen, influence of, on the vital resistance to disease, 68 • Splenic fever, 356 Spores, 34 and bacteria, difference between, '35 destruction of, by intermittent sterilization, 109 in the atmosphere, 183 presence of, in atmospheric dust, 105 resistant power of, 35 staining of, 35, 100 Fiocca's method, 101 Sporulation, 33, 34 diagram illustrating, 34 Sputum, tubercle bacilli in, 210 demonstration of, 210, 211 Sputum-cup, sanitary, 120 Staining bacteria in sections of tissue, 94—97 Lofner's method, 95 Pfeiffer's method, 96 cover-glass preparations, Gram's method for, 99 flagella, method of, 101 Pitfield's method, 103 fluid, Czenzynke's, 447 of tubercle bacilli in sections of tissue, 216 solutions, stock, 92 spores, 100 Fiocca's method, 101 Stapbylococci, 37 Staphylococcus epidermidis albus, 183 " golden," 184 pyogenes albus,-184 distribution of, in nature, 185 growth of, 186, 187 staining of, 186 aureus, 185 citreus, 189 Steam, sterilization of culture-media by, 108