INDEX. 



Absorption, Chapter IV., 103-161 



Absorption bands, see Chlorophyll 



Aerenchyma, 144 



Aerobic respiration, see Respiration 



Age of cells, 123 



Air passages, 143; variation in size, 

 143, 143 



Air space, proportion, 155 



Alcohol, see Fermentation, Intramo- 

 lecular Respiration, and Respir- 

 ation 



Alpine plants, brilliancy of flowers, 

 ' 374 



Aluminum, 95 



Amides, occurrence, 70; as waste 

 products, 70,71; as stages in pro- 

 teid synthesis, 71 



Anaerobic respiration, see Intramolec- 

 ular respiration 



Animals, differences from jjlants, 1 ; 

 resemblances, 261 



Annual rings, 123; causes of forma- 

 tion, 191-196 ; more than one ring 

 per annum, 195 



Antherozoids, chemotaxis, 235 



Akcexjthobium, 90 



Arctic plants, brilliancy of flowers, 

 374 



Ascent of water, 119; Sachs's hypo- 

 thesis, 119, 131; Godlewski's, 

 119, 121, 122; Strasburger's, 120, 

 123, 133; sap-pressure hypothe- 

 sis, 120, 137, 131, 133; gas press- 

 ure, 120; Jamin's chains, 120 

 Ash constituents, 93-|-; minimum 

 amounts, 101, 103 



Associated organisms, 253. See also 

 root tubercle plants, 73+ ; humus 

 plants, 78-|- ; carnivorous plants, 

 81+ ; parasites, 85+ ; lichens, 91, 

 92 



Autumn wood, 133; causes of forma- 

 tion, 194 



Auxanometers, 177 



B 



Bacteria, respiration of, 30, 31; in 

 fermentations, 30-37; Engel- 

 mann's bacteria method, 56 ; nitri- 

 f}'ing, 68; in root tubercles, 73- 

 76 ; N-fixing, 76 ; associated with 

 carnivorous plants, 83; sulphur 

 bacteria, 30, 98; iron bacteria, 

 20 ; nitrite and nitrate bacteria, 30 



Bacteroids, 74 



Bleeding, 137, 133 ; influence of tem- 

 perature, 134; pressure in bleed- 

 ing, 134, 135; amounts, 136 



Breathing pores, see Stomata 



Bkugmansia, 90 



Calcium, 99,100; Loew's hypothesis, 

 • 100 



Calories, liberated in respiration, fer- 

 mentation, intramolecular respir- 

 ation, see these topics 



Carbon, source of, 43; percentage in 

 air, 44 ; quantity in air, 44 



Carbon dioxide, rate of absorption, 

 45 ; means of maintaining sup- 

 ply, 45, 46 ; change in percentage 

 in air, 46 ; effect of increased per- 

 285 



