Quercitol oxidation 



190 



Quercitol oxidation by microorganisms, 

 II. 264; III. 61 ; V. 3-6, 9; VI. 13. 



Quinates as a carbon source, V. 3; VI. 4, 

 21, 25. 



Quinone: detection, IV. 19, 20; V. 9. 



— production by Actinomyces, IV. 13- 

 21, 22; V. 9. 



R 



Rabbit (Konijn), I. 296; V. 123; VI. 18 

 Rabies, V. 138; VI. 16-18. 

 Race: degeneration, III. 182. 



— fixation, I. 364, 365, 403, 404. 



— variety and species, I. 359, 366, 401- 

 406, 407-408, 419; III. 3, 18, 182, 183, 

 262, 271, 272, 273; IV. 28, 30, 39, 40, 

 46, 48-52, 55, 59, 115, 316; V. 36-38, 

 73, 178, 186-193, 210, 281-288. 



Radenkörner (Earcockle), I. 17. 



Raffinose : dissimilation by microorga- 

 nisms, II. 171, 264, 279; III. 182, 248; 

 V. 16, 17, 91, 107, 273; VI. 4, 6, 13. 



— sensitive test on — , V. 93. 



Raisin (Rosine, Rozijn), III. 55-56, 185, 

 186, 258, 290; IV. 40; V. 62, 260. 



Raising power of yeast, III. 62; IV. 314; 

 V. 162, 163*. 



Rapé (Rübe), V. 109. 



Reductase or catabolic action, IV. 204, 

 205, 209. 



Reduction : by means of microorganisms, 

 II. 151, 201, 204-209, 246, 258, 331- 

 340, 352, 358; III. 43, 77, 87-89, 97- 

 101, 106, 117; IV. 18, 22, 24, 29, 35, 

 59, 72, 148, 177, 192, 193-197, 203, 

 204, 209, 210, 285, 286; V. 101. 108. 

 109, 274; VI. 13, 76, 79. 



— by means of sodium hydrosulphite. 

 II. 204, 234, 235, 302, 352; III. 73, 74, 

 77, 88. 



— in an acid medium by Oidiuni lactis 

 and yeasts. V. 274. 



— in relation to oxygen, II. 204-209, 

 246; IV. 193, 194. 



— of cyanates by microorganisms, IV. 

 196, 197. 



— of hydrogen peroxide by microorgan- 

 isms, II. 201, 246, 258;III, 43; IV. 59, 

 285; V. 108; VI. 79. 



— of indigo blue by microorganisms, 

 II. 151, 246, 331, 337, 352; III. 88; 

 IV. 192, 196. 



— of laevulose to mannitol by lactic 

 acid bacteria, IV. 59, 72, 192, 286, 

 317; V. 101. 109. 



Reduction: of litmus, II. 151; IV. 196, 

 286; V. 155. 



— of methylene blue, IV. 197. 



— of molybdenic and tungstic acid by 

 microorganisms, IV. 196; V. 274. 



— of nitrates, II. 151; III. 18, 19, 117; 

 IV. 18, 22, 29, 148, 177, 192, 195, 

 348, 352-354-356-370, 382; VI. 13. 



— of organic iron salts by microorgan- 

 isms, IV. 196, 197, 210. 



— of pigments, II. 333-334-337, 352, 

 358*; IV. 197. 



— of selenates, selenites, tellurates and 

 tellurites by bacteria, IV. 192, 194. 

 195, 209. 



— of sulphate, see: Sulphate reduction. 



— of sulphite, see: Sulphite reduction. 



— of sulphur. see: Sulphur reduction. 



— of thiosulphate. see: Thiosulphate re- 

 ductiofi. 



Reductive power: in relation to strict 

 anaerobism and fermentation, III. 88, 

 89, 97. 100; V. 193, 194. 



— of Bacillus cyaneofuscus, II. 331, 336, 

 337, 340. 



— of Bacillus nitroxus, III. 99. 



— of Granulobacter butylicum, III. 77. 

 87-89, 95-99-101. 



— of lactic acid bacteria, II. 337, 352; 

 III. 99. 



— of luminous bacteria. II. 204-209, 

 246; VI. 79. 



— of yeast, III. 88, 99, 105, 106; IV. 24. 

 35. 196, 197, 203, 204. 209, 210. 



Regeneration : concept, I. 293-294. 



— of the spore forming ability of Uro- 

 bacillus Pasteurii, IV. 89. 



— of the spore forming ability of yeast. 

 III. 278-292; IV. 41. 330, 331; V. 69- 

 71. 



— phenomena, I. 90-124, 293-298. 299- 

 317; II. 103, 289. 



Rejuvenation of Saccharomyces sphaeri- 



cus, III. 178. 

 Rennet, II. 219, 354. 356. 

 Reproduction of cells : see Cell reproduc- 



tion. 

 Reproduction. role of cytoplasm and nu- 



cleus, II, 15, 20, 105. 

 Reserve cellulose, III. 150, 287; V. 106; 



VI. 14. 

 Resin. IV. 276, 277. 

 Resin arabic, IV. 100. 

 Resistance : of bacteria to drying, II. 356 ; 



III. 113; IV. 29. 325; V. 13. 



