742 



INDEX. 



Streak culture, i. 134 



Streptococcus, i. 34,* 55, 272 

 acidi lactici, i. 224 

 erysipelatis, effect of sunlight 



on, i. 79 



hollandicus, cause of ropy milk, 

 i. 281 ; in Edam cheese, i. 322 



Streptothrix, i. 33, 355 



Foersteri, arthrospores, i. 67 



Strontium, ii. 43 



Strychnosleiosepala, ii. 324 



Stysanus otemonitis, ii. 379 



Sublimate, i. 42, 147, 148, 175, ii. 157 



Succinate of ammonia. See Ammo- 

 nium succinate 



Succinic acid, i. 177, 313, ii. 83, 171, 

 205, 394, 490, 493, 494, 495 ; action 

 of, on yeasts, ii. 246 ; produced by 

 Allescheria Gayoni, ii. 368 ; Myco- 

 derma, ii. 417 ; Saccharomyces 

 apiculatus, ii. 434, 435 ; yeast cells, 

 ii. 245 ; during fermentation of 

 madder, ii. 459 



Sucrase, ii. 516 



Sugar, ii. 364, 365, 441, 457, 459, 

 469, 487, 489, 490, 492, 495, 496, 

 497, 507, 539, 540 ; in preventing 

 liquefaction of gelatin, ii. 370 ; 

 action of alcoholase on, ii. 473 ; 

 of Lactomyces on, ii. 354 ; of yeast 

 on, ii. 543 ; action on alcoholase, 

 ii. 476 ; on fermentation, ii. 470, 

 472 ; as a source of carbon for 

 yeast, ii. 206 ; consumed by yeast 

 in relation to supply of oxygen, 

 ii. 233 ; decomposition of, ii. 419, 

 420, 484 ; fermentation of, ii. 368, 

 388 ; fission of, ii. 463, 467 ; forma- 

 tion, ii. 168 ; fungus, i. 16 ; in- 

 fluence of strength of solution on 

 reproduction of yeasts, ii. 229; in- 

 fluence on Torulacese, ii. 397 ; part 

 played in sugar factories, i. 272 ; 

 sulphur in, ii. 201 



Sugar beet as a nutrient medium, ii. 

 292, 293 



Sugar-gelatin, ii. 502 



Sugars, decomposed by Mycoderma, 

 ii. 419, 420 ; fermentable and non- 

 fermentable, ii. 512, 573 ; produc- 

 tion of acids from, ii. 356, 361 

 Sulphate of ammonium. See Ammo- 

 nium sulphate 



Sulphates, in yeast culture, ii. 48, 

 200 ; reduction to sulphides, i. 

 293 ; retard motion of bacteria, 

 i. 41 



Sulphide of iron, a cause of blue 

 cheese, i. 152 



Sulphides, formed from sulphates, i. 



293 



Sulphite, ii. 48 

 Sulphites, action of philothion on, ii. 



559 



Sulphur, ii. 463 ; action of philothion 

 on, ii. 558 ; circulation of, i. 

 374 ; importance of, in growth 

 of fungi, ii. 48 



bacteria, morphology, i. 362-374 

 dioxide, ii. 442 ; action on 

 Saccharomyces apiculatus, ii. 

 430, 433, 442 ; influence on 

 yeasts, ii. 396 

 Sulphurea, ii. 48 



Sulphuretted hydrogen, i. 292, 371- 

 374, ii. 175, 217, 242, 372, 463, 

 511 ; liberated by Torula, ii. 372 ; 

 produced by yeast, ii. 238, 558, 559, 



Sulphuric acid, ii. 520, 524, 527, 531, 



532 ; action of, on micro-organisms, 



ii. 244 ; on proteolysis, ii. 552 ; 



on yeast, ii. 237 ; as an antiseptic, 



ii. 108, 149, 200, 201 ; produced 



by yeast, ii. 554 

 Sulphurous acid, ii. 559, 560 

 Sumack infusion, micro-organisms, 



i. 269 

 Sunlight, action on Saccharomyces 



apiculatus, ii. 430 ; on yeasts, 



ii. 58 ; decomposing power of, i. 



25 ; protective effect of pigment, 



ii. 58 

 Superphosphate for preventing loss 



of nitrogen, i. 335 

 Suspensor, ii. 17 

 Sweet ensilage, i. 261 



rot, ii. 101 



Symbiosis, definition, i. 85 

 Sympodial branching, ii. 71 

 Symptomatic anthrax bacilli, culture 



with Mic. acidi lactici, ii. 87, 181 ; 



chemical action, i. 182, 233 ; 



pleomorphism, i. 9 

 System of bacteria, Cohn's, i. 89 ; 



De Bary and Hueppe's, i. 91 ; W. 



Migula's, i. 92 ; Van Tieghem's, 



i. 92 

 Systematic grouping of bacteria, 



importance of spore-germination in, 



TACHE jaune, ii. 322 



Tajttegrses, i. 281 



Tsettemselk,.i. 280 



Tagatose, behaviour of Mucor Rouxii 



with, ii. 89 

 Tan liquor, ropiness in, i. 285 



