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, 119. 

 Cephalodien, I. 11; 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. 

 Céréal: see Cereal. 

 Cerealose (Glucose), III. 141-143. 

 Cerisier: see Cherry. 

 Chalara polymorpha, Saccharotnyces 



sphaericus as the conidial form of, III. 



175, 177, 186. 

 Chalk: see Calcium carbonate. 

 Chamaecy paris , 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. 

 Chêne: 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: ^lycogen.W . 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 Chrorao- 



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 

 destroyingthe. III. 333-335; IV. 11. 12. 



— of indigo. III. 329-336; IV. 1-12. 



— of Saccharotnyces pulcherrimus, stain- 

 ing red with iron salts in presence of 

 oxygen, V. 259, 262, 263. 



