181 



Mutation 



Moiré phenomenon of Granulobacter pec- 



tinovorum, IV. 225, 229*. 

 Molybdenic acid, reduction by micro- 



organisms, IV. 196, 210; V. 274. 

 Monades. III. 321; V. 119, 139. 

 Monistic food, II. 249-251, 254-256-263. 



269,337; V. 7, 18, 1 1 1, 201, 253; VI. 77. 

 Monoecism, production of dioecism from 



— , II. 24, 289; V. 78. 

 Monstrosity, a kind of gall formation, I. 



2, 3. 5. 7, 9. 14, 15, 26. 44-49, 55, 57-60. 



171, 172; II. 3-6. 

 Morello (Griottier), I. 326. 

 Morphogenesis, I. 312-315-317, 342, 413; 



II. 7, 8, 20, 21, 54, 78, 127-136; III. 

 203, 205-207, 228, 229; IV. 287; V. 

 77, 249. 256, 257; VI. 28-45, 81, see 

 also: Gallproducing substances, and 

 Growth enzymes. 



Mosaic disease: cause, III. 296-299-312, 

 323; VI. 16, 19. 



— of tobacco, III. 296-305-308-312*, 

 323. 324; V. 137. 258, VI. 16, 19. 



Mosaic mottling compared with variega- 



tion, III. 307-308. 

 Mosses. I. 100. 301 ; III. 38; VI. 33, 35. 

 Mossgalls. 1.22.28. 71. 

 Moss rosé. I. 130. 

 Moth (Mot), I. 58. 

 Mother yeast: see Yeast. mother — . 

 Motile bacteria : aggregation-. emulsion-, 



and sediment figures, III. 244-254; V. 



202, 203. 



— demonstration of carbon dioxide as- 

 similation in the üght. III. 38. 



Motility of bacteria: as a reagent on 



oxygen. III. 38. 167. 

 — - in relation to anaerobism, II. 195. 



198; III. 27-42, 82-84, 89, 113. 121. 



125, 315-319. 



— in relation to nutriment, II. 195, 251; 



III. 68, 113, 121; IV. 120-122, 299; 

 VI. 12, 13. 



— of Planosarcina ureae, IV. 95*-97. 

 Mulberry, black, (Moerbezie, zwart), V. 



280. 

 Mushrooms, feeding value of, V. 233, 234. 

 Mustard oil: as a preservative, III. 328. 



— influence on Saccharotnyces mycoder- 

 ma, III. 326, 328; IV. 23. 



Mustard seed, III. 343. 

 Mutants: see also:Variants. 



— Bud, V. 64, 77. 



— differences with original form, V. 27, 

 45, 50. 51. 69. 81, 82. 85. 



Mutants : in experiments and nature. IV. 

 339, 340; V. 27, 38. 45. 53. 60. 69-70. 



— progressive. V. 46. 



— relation between the absence of se- 

 cundary — and the absence of karyo- 

 gamy, V. 62, 64, 66-70. 



— retrogressive. V. 46. 82. 



— sector, V. 27, 84, 88*. 



— sub — , V. 63-65-70, 84, 85, 88*. 

 Mutation : see also : Variation. 



— IV. 46; V. 25-73-86*, 104, 155-156, 

 178-181, 186, 192, 193, 199-215. 240- 

 242. 254-260, 261, 281, 287, 288; VI. 5. 



— and amphimixis, V. 67, 70, 74. 



— and gene theory, V. 50, 83. 214. 



— and modification. gradual difference. 

 V. 73. 287. 



— as a function of growth, V. 30. 179. 

 209. 



— concept. IV. 46; V. 25-26-28, 38. 

 73-75. see also: Variation, theoretical 

 observations. 



— influence of external factors, V. 26, 

 30, 104; see also: Modification. 



— influence of metabolic products, V. 



42, 43. 67, 155. 



— influence of nutrition, V. 30. 43, 50, 

 54, 59-61, 86*, 104, 155. 178-181, 186, 

 192, 193, 281, 286, 287. 



— influence of nutriment concentration, 

 V. 35, 42. 



— influence of respiration conditions, V. 



43, 44, 47. 50. 204. 205. 209, 215. 



— influence of temperature, V. 34, 35. 

 56, 58, 76, 84, 209. 215. see also: Mo- 

 dification. 



— no influence of ultraviolet radiation. 

 V. 208. 



— of Algae, V. 41, 59-61, 86*. 



— of Azotobacter chroococcum, VI. 5. 



— of Bacillus herbicola, V. 52-54. 



— of Bacterium prodigiosum, V. 28, 42- 

 51,84,85. 



— of luminous bacteria, V. 55-58, 84. 



— of Saccharotnyces. V. 71, 72, 240-242, 

 260, 261. 



— of Schizosaccharomyces, V. 30, 63-65- 

 70, 84, 85, 88*. 



— ontogenetic, V. 41, 192, 287, 288. 



— organ forming, V. 69. 74, 77, 80, 85, 

 192, 193. 



— phylogenetic, V. 41, 80, 82. 83. 



— pre — period, V. 54. 



— prevention. V. 42. 49. 51, 56, 66-68, 

 70, 104. 



