INDEX 



influence of light on respiration, 562 ; 



nitrogen-assimilating organisms, 394. 

 Purjewicz, 327, 529. 

 Purple-bacteria, 540. 

 Putz, 356. 

 Pyrenoids, 48, 314. 

 Pyrrol, 316. 

 Pyrus, 243. 



Buercitrin, 491. 

 uercus, starch in old pith of, 603 ; Q. robur, 



bleeding of leafy branches, 254. 

 Quincke, 101 ; on plasmatic membrane, 1 10. 

 Quinic acid, 447 ; nutritive value of, for 



fungi, 384. 

 Quinine, 457. 



Rabinowitsch, 532 ; influence of oxygen on 



thermophile bacteria, 533. 

 Raciborski, 383, 428, 510 ; on leptomin, 545. 

 Raffenau-Delile, 196, 197; currents of air in 



Nelumbium, 205. 

 Raffinose, 474. 

 Rafflesia, 369. 

 Ranuncuhts, 198. 

 Raoul, 103. 



Raphanus, influence of mineral food on, 594. 

 Ra PP> 557- 



Raspail, on calcareous incrustations, 133. 

 Rathey, on duramen, 484. 

 Raulin, 405, 406, 416, 427, 431 ; influence of 



zinc and manganese on growth of fungi, 



385. 



Raumer u. Kellermann, 433. 



Rautenberg u. Kuhn, 404, 435 ; influence of 

 chlorides on acidity of cultures, 132. 



Ravizza, 263, 269. 



Rawenhoff, 217, 232, 391. 



Ray, on bleeding of plants, 254. 



Reaumuria hirtella, saline incrustation of, 

 162. 



Reducing action, absence of, in respiring 

 protoplasts, 544. 



Regel, 369, 500. 



Rdgnard, 524 ; on swelling of seeds, 75. 



Regnault, 305. 



Regulatory mechanism, 12. 



Reichardt, 604. 



Reinhardt, 513. 



Reinitzer, 478, 493, 507 ; on fatigue sub- 

 stances, 517. 



Reinke, 67, 284, 314-7, 326, 331-5, 342, 

 345-50, 364, 370, 383, 391, 406, 459, 

 490, 509, 539 ; on bubble-counting 

 method, 351 ; force of imbibition, 75, 

 76 ; influence of different rays on for- 

 mation of chlorophyll, 334 ; maximal 

 intensity of light for photosynthesis, 

 340, 341 ; swelling of organized bodies, 

 73 ; at low temperatures, 230. 



Reinsch, 159. 



Reiss, 187,482, 599. 



Rendle, 319. 



PFEFFER S S 



Rennet-ferment, 509. 



Resa, 153. 



Reserve-cellulose, 599. 



Reserve-materials of seeds, 593, seq. 



Resin, 500, sec. 90. 



Resorcin, 383, 491. 



Respiration, 518, chap, ix; activity of, 522 ; 

 aerobic, 5 19, sec. 95 ; in photophobia 

 plants, 358, 525 ; in aquatic plants, 

 525 ; anaerobic, 530, sec. 97 ; ex- 

 travagance of, 568 ; errors due to ab- 

 sorption, 529 ; formation of water by, 

 529 ; historical account of, 552, 571 ; 

 importance of, 566, sec. 105 ; influence 

 of external conditions on, 561, sec. 104 ; 



temperature, 561 ; light, 520, 562 ; 



nutritive and poisonous substances, 

 563; injuries, 565, 566; percentage 

 of water, 565 ; ether, 564 ; relation 

 between evolution of CO., and absorp- 

 tion of oxygen, 544 ; in green plants, 

 520, 521. 



Respiratory ratio, 529; influence of tem- 

 perature on, 562. 



Rhamnus frangula, 113, Fig. 8. 



Rheum, oxalic acid in, 141. 



RhinanthuS) 365, 366, 369. 



Rhizobium leguminosarum, 396. 



Rhizoids, solvent action of, 171. 



Rhizomes, reserve-materials of, 604. 



Rhizopus oryzae, 406. 



Richardia ethiopica, 268. 



Richards, 311, 427, 525, 529; influence of 

 wounds on respiration, 565 ; - - of 

 poisons on growth, 385 ; - - of iron 

 salts on fungi, 416. 



Richardson, 327. 



Richet, 431. 



Richter, 140, 323, 336, 402, 421. 



Ricinus, 149, 261-3, 473, 499 ; behaviour of 

 cotyledons of, during germination, 596; 

 growth of isolated endosperm of, 598 ; 

 intramolecular respiration of, 537 ; 

 Ricinus commnnis, 259 ; bleeding of, 

 256. 



Ringing experiments, 574, 578, Fig. 67; 

 effects of different modes of, 213; in- 

 fluence of, on secondary growth, 580. 



Rischavi, 524. 



Risler, 243, 355. 



Risse, 436. 



Rissmiiller, 585. 



Ritthausen, 391 ; on artificial formation of 

 crystalloids, So. 



Robinia, 238, 400, 401 ; R. pseudacacia, as- 

 paragin in roots of, 603. 



Rochleder, 127, 451, 491, 494, 499 ; relation- 

 ship between metabolism and syste- 

 matic position, 457. 



Rodewald, on force of imbibition, 75 ; phe- 

 nomena of swelling, 73 ; heat produced 

 by swelling starch, 76 ; work done and 

 heat produced by respiration, 567. 



