181 



Mutation 



Moire 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. 



Moss galls, I. 22, 28, 71. 



Moss rose, 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 light, 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 Saccharomyces mycoder- 

 tna, 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 Saccharomyces, 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. 



