159 



Chromogen 



Cellulose : slime, V. 235, 236; VI. 5, 14, 15, 

 see also : Cellulose walls of bacteria. 



- spirillae, enrichment culture, VI. 27. 



- walls of bacteria, reactions, III. 49-51 

 53, 274; IV. 278; V. 89, 90, 236, 237, 

 255, see also: Slime. 



Central cylinder, I. 395; II. 22, 58, 72, 

 73, 107, 111, 113. 



Central lamellum, IV. 212; VI. 11, 14, 15. 



Central vessels, I. 95, 1 19. 



Cephalodien, I. 1 1 ; II. 1. 



Cerasin, I. 346. 



Cereal, I. 326,330,338,405; II. 15; III. 

 26, 39, 63, 65-68, 130, 131, 135, 137, 

 141-143, 151, 152, 176, 185; V. 108, 

 276; VI. 17, 83. 



Cereal: see Cereal. 



Cerealose (Glucose), III. 141 143. 



Cerisier: see Cherry. 



Chalara polymorpha, Saccharomyces 

 sphaericus as the conidial form of, III. 

 175, 177, 186. 



Chalk: see Calcium carbonate. 



Chamaecyparis, youth and dwarf forms, 

 II. 283-292. 



Chamberland-Pasteur filter, re- 

 liability, II. 225-226; VI. 78. 



Chanvre : see Hemp. 



Chaos infusiorum, V. 120; VI. 64. 



Charme: see Hornbeam. 



Cheese: blue, II. 327, 328, 337, 350-351- 

 352-357. 



- blue, contagiousness, II. 353, 356. 



- blue, prevention and cure, II. 352, 

 356, 357. 



- content of lactic acid, II. 222, 328, 35 1 . 



- defects: see Cheese, blue, and: Swell 

 (rijzers). 



- Edam, II. 222, 328, 337, 350-357. 



- making, II. 357; III. 320; IV. 38. 

 microscopical structure, II. 340, 350, 



351, 358*. 



- new, II. 355. 



Chemiotaxis, II. 162, 163, 180; III. 26- 

 42, 84, 245, 249-252. 



Chemosynthesis : see Carbon dioxide assi- 

 milation. 



Chemosynthetic denitrification : see De- 

 nitrification. 



Chene: see Oak. 



Cherry (Cerisier, Kers, Kirsche), I, 58, 

 325, 326, 328, 329, 330, 335, 336, 339- 

 346; IV. 268, 269, 275, 276; V. 169, 171. 

 172, 176. 



Cherry-laurel (Laurier-cerise), I. 325, 328. 



Chersamel, I. 23, 58. 



Chestnut (Kastanie), V. 78. 



Chimaera, see: Bud variation of Cytisus 



Adami. 



Chinese galls, I. 22, 36. 

 Chitine, IV. 256; V. 90, 233, 235. 

 Chlorellavariegata:glycogen,IV. 233 ;V.61. 



- isolation, IV. 232; V. 59. 



- mutation and variation, influence of 

 nutrition, IV. 234, 235; V. 59-61, 86*. 



- occurrence in slime flux of elms, IV. 

 231, 232; V. 59. 



Chlorella vulgaris: cultivation, II. 229, 

 230, 296, 297, 299; III. 21, 22. 



- description, II. 300-302,311. 



- occurrence, III. 21. 



- relation to the zoochlorellae of Hydra 

 viridis and Paramaecium bursaria, II. 

 229-233, 304-311; III. 22; V. 288. 



Chlorophyceae: see Algae, green. 

 Chlorophyll : action in photosynthesis, 



IV. 129; V. 288. 



- in evolution, IV. 231 ; V. 60, 61, 86. 



- influence of organic food substances on 

 the - - of unicellular green Algae, II. 

 295, 296; III. 293-295; IV. 233, 234; 



V. 60, 61, 88*, 288. 



Chloroplasts: indigo enzymes, III. 340- 

 342; IV. 7, 8. 



- in evolution, II. 312. 



suspension, carbon dioxide assimila- 

 tion, IV. 129; V. 228. 

 Cholera: blue reaction, III. 19. 



- red reaction, III. 18, 20. 



Cholera bacteria: II. 197, 344; III. 18-20, 

 126, 170, 237, 245; V. 8, 214. 



- and pressed yeast, III. 18. 



- nitrate reduction to nitrite, III. 18-20. 

 Chromatium: cultivation and occurrence, 



III. 39. 



- phototaxis, III. 40, 41. 



- respiration figures, influence of sul- 

 phuretted hydrogen, III. 40, 41. 



Chromatophorous bacteria: see Chromo- 



phorous bacteria. 

 Chromatophores, II. 312; IV. 239-241; 



V. 230. 

 Chromogen: coloured line in partly killed 



leaves, III. 335; IV. 11, 12. 



- method for killing plants without 

 destroying the, III. 333-335; IV. 11, 12. 



- of indigo, III. 329-336; IV. 1-12. 



- of Saccharomyces pulcherrimus, stain- 

 ing red with iron salts in presence of 

 oxygen, V. 259, 262, 263. 



