566 



INDEX 



Spirochceta, see Spirochsetes. 



balanilidis, 41. 



bronchialis, transmission, 40, 41; 

 cause of bronchitis, 73s. 



buccalis, 40; pathogenicity, 73A- 

 73B. 



carteri, 42; in bedbugs, 378. 



dentium, 40. 



duttoni, 42. 



hebdomadis, 73D. 



icterohcemorrhagioe, 41; see also 

 under Leptospira. 



icteroides, see under Leptospira. 



morsus muris, 73. 



nodosa, see Leptospira ictero- 

 hcemorrhagios. 



novyi, 42. 



obermeieri, see $p. recurrentis. 



orientalis, 41. 



pallida, discovery, 7, 41, 49, 52. 



pertenuis, 41, 63. 



recurrentis, discovery, 7, 43; de- 

 scription, 52; distribution in 

 body, 52. 



refringens, 52. 



schaudinni, 41, 73c. 



vincenti, 41. 



Spirochaetes, cultivation, 9; 38-73; 

 relationships, 38; multiplica- 

 tion, 39; granule shedding, 39; 

 and disease, 40-42, 73; localiza- 

 tion, 41; and relapsing fever, 

 42-48; and syphilis, 48-62; and 

 yaws, 63-65; and infectious 

 jaundice, 65-69; and rat-bite 

 fever, 73-73A; and Vincent's 

 angina, 73A; and noma, 73A; 

 and balanitis, 73A; and mal-de- 

 boca, 73 A; and bronchitis, 73s; 

 and tropical ulcer, 73c; and ul- 

 cerating granuloma, 73c-73D; 

 transmission by ticks, 360. 

 Spleen rate, and prevalence of ma- 

 laria, 161. 

 Sporocyst, of coccidian, 172; of 



flukes, 209; 211. 



Sporozoa, 35, 36; and human dis- 

 ease, 149, 168. 



Spotted fever, relation of ticks to, 

 8, 188-189, 361-363; and Piro- 

 plasmata, 168; 188-189; dis- 

 tribution, 188; parasite of, 188; 

 reservoirs, 189. 



Spotted fever tick, see Dermacentor 

 venustus. 



Squirrels, hosts of Moniliformis 

 clarki, 285; hosts of immature 

 stages of Dermacentor venustuk, 

 362; and plague, 411, 413; fleas, 

 418. 



Stable-flies, see Stomoxys. 



STANLEY, and spread of sleeping 

 sickness, 93. 



Staten Island, reduction of malaria, 

 166. 



STAUBLI, C., 290. 



STAUFFACHER, H., 76, 193. 



Stegomyia, see Aedes. 

 fasciatus, see Aedes calopus. 



STEPHENS, J. W. W., 282. 



Stephensport, quininization, 164- 

 165. 



Sterilization, of blood against tryp- 

 anosomes, 107. 



STEWART, F. H., 274, 275. 



Sticktight flea, see Echidnophaga gal- 

 linacea, 420. 



Stigmal plates, of maggots, 509-510. 



STILES, C. W., 116, 125, 242, 252, 

 254, 266, 296, 297, 400. 



STOKES, J. H., 483. 



Stomoxys, transmission of Trypano- 

 soma gambiense, 98, 507; rela- 

 tion to Onchocerca volvulus, 311; 

 mouthparts, 327, 464, 505; 

 transmission of anthrax, -488, 

 507; 504-508; general descrip- 

 tion, 504-505; life history, 505- 

 506; and disease, 507; control, 

 507-508. 

 calcitrans, 504; and infantile 



paralysis, 507. 



nigra, and Trypanosoma gam- 

 biense, 98, 507. 



Streptothrix, and rat-bite fever, 73A. 



STRICKLAND, C., 409, 410, 417. 



