INDEX 



893 



Sarcina auriantiaca, 251 

 lutea,25i,256,326, 327 

 ventriculi, 499 

 Sarcocystis tenella, 23 

 Sarcosporidia, 23, 121, '136 

 Sauerkraut, 554 

 Sausage poisoning, 491 

 Scarlet fever, 801 

 Schick test, 587 

 Sohistocerca americana, 642 



paranensis, 642 

 Schizogony, 126 

 Schizomycetes, 12 

 Schizosaccharomyces, 60, 67, 90 

 octosporous, 34, 61, 68 

 pombe, 73 

 Sclerotium, 37 



Seasonal influence^ on soil, 309 

 Sea water, microorganisms in, 264, 



266, 267 

 Sedim^tation, influence on germ 

 content of water, 264, 266, 

 267 I 



Selenopsis gemminata, 643 

 Self-fertilization, 128 

 Sensitized vaccine, 574 

 Septicaemia, 744 



of caterpillar, 643 

 of cockchafer, 649 

 hemorrhagic, 777 

 of larva of Lamellicornia, 651 

 puerperal, 744 

 Septic tank, 286 

 Septum, 36 



Serum, antidiphtheritic, 576 

 antidysenteric, 581 

 antigonococcic, 580 

 antimeningococcic, 580 

 antimicrobial, 580 

 antirabic, 581 

 antistreptococcic, 580 

 Dorset-Niles, 568 

 preservation of, 581 

 Sewage, anaerobic organisms, 276 

 disinfection, 287 

 fermentation of, 276 



Sewage, fermentation of, cellulose, 

 277 

 fats, 278 

 proteins, 276 

 urea, 279 

 filters, 285 

 longevity of pathogenic organism 



in, 282 

 microorganisms of, 274, 275 

 cultivation of, 284 

 destruction by biological proc- 

 esses, 287 

 by chemical processes, 287 

 life in filters of, 283 

 oxidizing bacteria of, 281 

 pathogenic bacteria in, 282 

 prevalence of pathogenic, 282 

 reduction of nitrates, 279 

 nitrites, 279 

 sulphates, 279 

 septic tank for, 286 

 streptococci in water, 257, 274 

 tanks, 286 

 Sexual changes, 34 

 Sheath of higher bacteria, loi 

 spirochaetes, 105 

 trichobacteria, 107 

 Sheeppox, 805 

 Shell-fish poisoning, 493 

 Side-chain theory of immunity, 721 

 Skatol, 170 

 Skin, 669 



Sleeping sickness, 827 

 Slimy milk, 397 



wine, 512 

 Smallpox, 801 



vaccine, 563 

 Snow, micro6rganisms in, 261 

 Sodium chloride as preservative, 483 

 Soil, acidity, 298 



causes of, 299 



number of organisms, influ- 

 enced by, 299 

 range of, 298 



species, influenced by, 299 

 aeration, 293 



