species 



196 



Species: systematic, IV. 28, 115. 



— varieties and races, I. 359-366, 401- 

 407-408, 419; III. 3, 18, 182, 183, 262, 

 272, 273; IV. 28, 30, 39, 40, 46, 48-52, 

 115, 316; V. 36-38, 73, 178, 186-193, 

 210, 281-288. 



Spelt (Épeautre, Spelt), I. 361, 364, 406; 



III. 64; VI. 80, 84. 

 Spherites, V. 145, 148*; VI. 23, 24. 



— blue, of Bacillus cyaneofuscus, II. 335, 

 336, 350-352. 



Spinage (Spinazie), I. 82; IV. 129. 



Spinazie: see Spinage. 



Spireae, glucosides and enzymes, III. 



325-328; IV. 12, 23. 

 Spireain, III. 325, 327; IV. 12. 

 Spirillae: enrichment culture, VI. 26, 27. 



— denitrifying, IV. 377, 383. 

 Spirillum, classification, III. 126. 

 Spirillum desulfuricans: anaerobism, III. 



118, 123, 314, 319, 320; IV. 25, 197, 

 199. 



— cultivation, III. 123*, 125. 



— description, III. 118, 123*-125, 319. 



— influence of drying, III. 113. 



— influence of organic food substances, 



III. 113; IV. 26. 



— influence of salts, III. 127; IV. 199. 



— occurrence, III. 112, 113; IV. 24-26, 

 199. 



— reduction of sulphate, III. 102-110- 

 111-127; IV. 24-26, 199-202, 210. 



— reduction of sulphite and thiosulphate 



IV. 201, 202. 



Spirillum lipoferum (soil spirillum) : and 

 Azotohacter, production of calcium car- 

 bonate pearls, VI. 23, 24. 



— description, IV. 116; VI. 6, 21, 24, 26. 



— enrichment culture, IV. 116; VI. 6, 

 22-24. 



— nitrogen fixation, VI. 23, 24, 26. 



— occurrence, IV. 116; V. 95; VI. 6, 22. 



— pure culture, VI. 6, 24-26. 

 Spirillum /ewwe : cultivation, III. 37, 121, 



125. 



— description, III. 118, 120, 121, 123*, 

 125. 



— microaerophily, III. 33, 37, 118, 123* 

 -125. 319. 



— production of calcium carbonate, III. 

 121. 



Spongia cynosbati, I. 22. 



Spontaneous generation, see: Abioge- 



nesis. 

 Spores: arthro, IV. 14. 



Spores: oi Amoebae, III. 191, 197. 



— of bacteria, III. 64, 66, 67, 71, 75, 

 78, 85*, 86, 91, 93, 315, 316; IV. 

 15, 85, 87, 89*, 90, 94*, 95*, 96, 111, 



115, 116, 141, 149, 224, 225*, 325, 327; 

 VI. 7, 9, 10, 11. 73. 



— of bacteria, regeneration, IV. 89. 



— of bacteria, resistance to alcohol, III. 

 91, 303. 



— of bacteria, resistance to alkali, IV. 

 94, 97. 



— of bacteria, resistance to drying, III. 

 91; IV. 325. 



— of bacteria, resistance to temperature. 



III. 64, 66, 71, 78, 91, 93, 315. 316; 



IV. 15, 85, 89, 90, 94, 96. 111, 115, 



116, 141. 147, 149, 150, 152, 160, 161, 

 224, 325, 327; VI. 7, 10, 11, 73. 



— of yeast. II. 212; III. 56, 57, 59, 60, 

 62*, 257. 260-262, 264, 270*, 278-292; 

 IV. 40, 41, 287, 330, 331 ; V. 62, 65-70, 

 88*, 164, 165. 



— detection in the colonies, III. 280- 

 282, 284, 286-288, 291. 



— methods for obtaining, II. 212; III. 

 282-284. 



— oxygen relation, III. 282. 



— regeneration, III. 278-292; IV. 41, 

 330, 331; V. 69-71. 



— resistance to drying at high tempera- 

 ture, III. 257, 260-262, 279-282, 285. 

 287-289; V. 164. 165. 



— resistance to very low temperature, 

 IV. 329-331. 



Sporocybe chartoikoon : agar and cellulose 

 as carbon sources, V.*148. 



— description, V. 147. 



— isolation, V. 146, 147. 

 Sporogenous bacteria: denitrifying, en- 

 richment culture, IV. 356, 367. 



— in relation to temperature, IV. 97. 

 Sports, IV. 46. 



Sprinkhaan: see Locust. 



Sprout: see Bud. 



Stalkforming substances, I. 315. 



Starch, II. 350; III. 85, 88, 92, 129-153, 

 187, 188, 298, 299; IV. 100, 116, 240, 

 241, 342-346; V. 20-24, 196-198, 277. 



— crystallized. V. 196-198*. 



— diffusion in agar agar, III. 298 ; IV. 1 00. 



— dissimilation by microorganisms, II. 

 216, 264; III. 64, 76, 92, 111, 133, 137, 

 290; IV. 354; V. 273. 



— liquefaction by various amylolytic 

 enzymes, III. 64, 137. 



