INDEX 



407 



Scarlet fever, 332. 

 Schardinger's reagent, 245. 

 Schizomycetes, 23. 

 Schizophyceoe, 23. 

 Schizophyia, 23. 

 Sclero-proteins, 83. 

 Septic sore throats, 331. 

 Silica jelly media, 146, 148. 

 Skatole, 102, 

 Slants, 53 (Fig. 20). 

 Slides, to clean, 5. 

 Slimy fermentation, 278. 

 Soaps, 79. 



Soft cheese ripening, 371. 

 Soil, action of heat on, 130. 



antiseptics on, 130. 



bacteria, kinds of, 122. 



numbers of, 118. 



denitrifying power, 208. 



fermentative action, 206. 



fungi in soil, 136, 



inoculation, 199-202. 



nitrifying power, 208. 



nitrogen-fixing power, 209. 



putrefactive power, 207. 



urea-splitting power, 207. 



Soluble casein, 237, 238. 



Sore throats, 331. 



Sour-milk beverages, 313. 



Spawn of fungus, 379. 



Spfuzrdtilus, 27. 



Spirillaceas, 27. 



Spirosoma, 27. 



Spirillum, 12, 27 (Fig. 5). 



Sporangia, 387. 



Sporangiophore, 387. 



Spore, 20 (Fig. 11). 



Spores, germination of, 21, 22, 23. 



staining of, 22. 



Stab culture, 52 (Fig. 19). 

 Staining of spores, 22. 

 Standard acidity, 311. 

 Stafhyloccocus, 19 (Fig. 9). 

 Staphylococcus pyogenes aureus, no. 

 Starch, 73. 



hydrolysis of, 73. 



Starters, 339. 

 natural, 339. 



pure culture, 340. 

 Steam sterilizer, 37. 

 Stearic acid, 80. 

 Sjearin, 80. 

 Sterigmata, 379. 

 Sterigmatocystis niger, 384. 

 Sterile, 35. 



Sterilization, 35, 48. 

 of milk, 293. 



intermittent, 37, 48. 

 Stichococats, 185, 186. 

 Streak culture, 52. 

 Streptococcus, 19, 26 (Fig. 9). 



hollandicus, 273, 279. 

 hornensis, 280. 



Kefir, 272. 



lacticus, 271. 272 (Fig. 46). 



longus, 97. 



mastitidis, 273. 



pyogenes, no, 273, 330. 

 Streptothrix, 121. 

 Strippings, bacteria in, 250. 

 Summer diarrhoea, 329. 

 Symbiosis, 124, 185, 186, 195. 



TABLES, 397. 

 Temperature, maximum, 30. 



minimum, 30. 



optimum, 30. 

 Test, biuret, Ex. 45. 



curd, Ex. 162. 



Fehling's, Ex. 44. 



for acid-fast organisms, Ex. 150, 



acidity in milk, Ex. 134. 



albumose, Ex. 51. 



Bs. enteritidis, Ex. 151. 



dirt in milk, Ex. 143. 



enzymes, bacterial, Exs. 



56758. 

 in milk, Exs. 120-122. 



indole, Ex. 63. 



nitrates, Ex. 74. 



nitrites, Ex. 74. 



oxidases, Exs. 66, 67. 

 peptone, Ex. 51. 



proteins, Ex. 45. 



proteose, Ex. 51. 

 reductase, Ex. 122. 



of soil activity, Ex. 101. 



Wisconsin curd, Ex. 162. 

 Thallophytes, 4, 5. 

 Thiobacteria, 27. 

 Thiothrix, 28. ' 



Torula, 390. 



amara, 377, 396. 

 ellipsoidea, 315. 



Kefir, 314. 

 Toxins, 103. 

 Trypsin, 93, 94. 

 Tryptophane, 86, 89, 93. 

 Tuberculin, 326. 

 Tuberculosis, 321. 



