199 



Transitive forms 



Teasel (Kaarddistel, Weverskaarde), I. 



18, 284. 

 Telebolic conversions, IV. 14, 21; V. 93- 



95, 239, 255. 

 Tellurates and tellurites, reduction by 



bacteria, IV. 192, 194, 195, 209. 

 Temperature : elective cultivation by, II. 



211, 216, 220, 299; III. 64, 65, 71, 78; 



IV. 40, 55-58, 65. 72, 74-77, 280. 283, 



284. 288, 289. 296, 297, 314, 316, 317 



319. 320, 329-331; V. 62, 70, 130, 131. 



VI. 10, 15, 73. 



— influence of the time factor, II. 341, 

 344; III. 280. 



— influence of very low — on micro- 

 organisms, IV. 324-332. 



— influence on Bacillus cyaneofuscus, 

 II. 328-330, 341-346. 



— influence on Bacillus radicicola, VI. 

 62, 65. 



— influence on Bacterium prodigiosutn, 



II. 344; IV. 333. 337, 338; V. 35. 58. 

 76; VI. 62. 



— influence on Cyanophyceae, IV. 329, 

 331; V. 135. 



— influence on enzymes, III. 135, 153. 



— influence on fermentation, III. 70. 

 72, 93, 290; IV. 65. 



— influence on luminous bacteria, II. 

 198, 242, 243, 248, 267, 271. 345; IV. 

 39. 45, 328. 329, 332; V. 55, 56, 199- 

 201, 209, 215, 216, 252; VI. 62, 79. 



— influence on mosaic virus of tobacco, 



III. 304; VI. 18. 



— influence on yeast, III. 72, 280, 289, 

 290; IV. 64, 65; V. 163. 



— influence on the agglutination power 

 of Lactococcus agglutinans, IV. 317, 

 318. 



— influence on the variation of Schizo- 

 saccharomyces octosporus, III. 257-259, 

 262, 263, 279-289; IV. 41 ; V. 62, 70. 



— resistance of bacterial spores, II. 299; 

 III. 61, 64, 78, 91, 93. 315, 316; IV. 

 15, 85, 89, 90, 94, 96, UI. 115. 116, 

 141, 147, 149, 150, 152, 160, 161. 224. 

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



— resistance of vegetative cells, II. 299; 

 III. 281, 288, 289; V. 117. 



— resistance of yeast spores, III. 257, 

 260-262, 279-282, 285, 287-289; V. 

 164, 165. 



— suncracks of trees, VI. 59, 60. 

 Tension and pressure in culture media, 



influence on bacteria, III. 346. 



Teratological phenomena, a kind of gall 



formation, I. 2, 3, 5. 7, 9, 14, 15, 26, 



44; II. 3-6. 

 Teratology. I. 293, 299-317; II. 7, 102. 

 Terminalis wasp, heterogenesis, I. 174, 



175. 

 Tetanus bacillus, III. 317-319; IV. 366. 

 Thallus theory of the leafy stem, II. 107, 



109, 110. 

 Thiobacillus denitrificans : description, 



IV. 209, 247, 248. 



— enrichment culture, IV. 207, 208, 246, 

 248. 



— loss of reproductive power, IV. 247. 



— pure culture, IV. 209, 247. 

 Thiobacillus thioparus: description, IV. 



209, 247. 248. 



— enrichment culture, IV. 206, 207, 

 243-245, 248. 



— loss of reproductive power. IV. 247. 



— production of alkali, IV. 244. 



— pure culture, IV. 209, 247. 

 Thiosulphate reduction: III. 104, 105; 



IV. 24, 35, 201-204, 210. 



— by yeast, III. 105; IV. 24, 35, 203, 

 204. 



— influence of nitrates and nitrites, IV. 

 201. 202. 



Thistle (Distel), I. 85, 381. 



Threadworms, I. 284. 



Thuya, youth and dwarf forms. II. 283- 



292. 

 Tiphe, I. 421. 



Tissue tension, I. 304-306; VI. 33. 

 Tjaette molken, IV. 55, 288; V. 235. 

 Tobacco, mosaic disease, III. 296-312*. 



323, 324; V. 137; VI. 16. 

 Tobacco plant (Tabac, Tabakspflanze, 



Tabaksplant). III. 296-311*, 312*, 



323; V. 137; VI. 16. 

 Tomato (Tomaat), I. 99. 

 Tonotaxis, IV. 245, 249-252. 

 Tonotropism, V. 202, 203. 

 Toruia yeast, II. 235; III. 178; IV. 217, 



293; V. 233, 234, 261. 

 Transferring: frequently, to prevent 



atavism, degeneration. mutation and 



variation. IV. 44. 45, 333. 334, 338, 



340; V. 49. 56. 66-68, 70. 



— significance for anaerobics, V. 33. 

 Transformation, II. 242; III. 177; IV. 38, 



39, 40, 46, 76, see also: Fluctuation, 

 Modification and Polymorphism. 

 Transitive forms between bacteria, IV. 

 59, 96, 281. 



