328 



INDEX. 



Assimilation of carbon, 21 ; affected 

 by chloroform, 38 ; by excess 

 of C0 2 , 26; by temperature, 

 37 ; dependent on presence of 

 C0 2 , 28, 29, 37; effect of in- 

 tensity of light on, 24; gain in 

 weight during, 31 ; of land- 

 plants under water, 26 ; Pfeff er's 

 method of estimating C0 2 de- 

 composed in, 41 ; of sugar, 32 ; 

 in variegated leaves, 23 ; stomata 

 in relation to, 26; wandering of 

 products of, 32 



Averrhoa, autonomous movements, 

 225, 231 ; paraheliotropism, 

 224 



Autonomous movements of Aver- 

 rhoa, 225, 231; of Trifolium, 

 230 



Auxanometers in general, 149 



Auxanometer, self-recording, 153 ; 

 simple form of, 155 



Auxanometer-lever, 158 



Bacteria, chemotaxis of, 216 



Bacterial method of demonstrating 

 evolution of oxygen, 48 



Balance, spring-, used in tran- 

 spiration experiments, 100 



Baranetzky, his recording aux- 

 anometer, 149 n., 153 



Barfoed's solution, 282 



Barium in fungus culture, 70 



Barley used in experiments on 

 ash, 302 ; on enzymes, 306 



Bary, de, see De Bary 



Bateson, Miss A., on changes in 

 transverse dimensions of pith, 

 135. See also Darwin, F. 



Beetroot as indicator of injurious 

 temperature, 15 ; see also Beta 



Begonia, root-pressure in, 78 



Begonia manicata, for osmotic 

 work, 129 



Beilstein, organic chemistry text- 

 book on, 239 



Bellis perennis, effect of continued 

 darkness on, 233; periodic 

 movements of, 233 ; effect of 

 temperature on opening of flow- 

 ers, 233 ; effect of contrast of 



temperature on opening of flow- 

 ers of, 234 



Benzene, use of in extraction, 245 



Benzol, action of, on chlorphyll 

 solution, 50 



Berberis, effect of chloroform on 

 stamens of, 210; irritable sta- 

 mens of, 209-211 



Beta, used in experiments on 

 sugar, 288 



Blackman, on a method of studying 

 respiration, 5 n. ; on the import- 

 ance of stomata for respiration, 

 26 n. 



Blocking of vessels by particles 

 suspended in water, 86, 87 



Blood, used to demonstrate evo- 

 lution of oxygen, 39 



Bloom on leaves, effect of on 

 assimilation, 26 n. ; as affecting 

 transpiration, 111 



Bohm on assimilation of sugar, 

 32 n. 



Bokorny on formaldehyde, 34 



Bonnier and Mangin, their ap- 

 paratus for gas analysis, 38, 47 n. 



Boussingault, his phosphorus me- 

 thod of demonstrating evolution 

 of oxygen, 41 



Branches, drooping in frost, 178 ; 

 horizontal growth of, 196 



Brown and Morris on Carbohy- 

 drates etc., 276, 285, 290, 303 



Briicke on rigidity of pulvinus of 

 Oxalis, 206 



Bryonia, tendrils, 200 



Bunsen, formula used in gas- 

 analysis, 44 



Caesium in fungus culture, 70 

 Calcium in fungus culture, 70 

 Calcium oxalate, physiology of, 66 ; 



estimation of in tissues, 301 

 Callitriche, stomata of, 110 

 Caltha palustris, stomata of, 107 

 Cane-sugar, see Sugars 

 Carbohydrates, soluble, see Dex- 



trins, Sugars; insoluble, see 



Starch, Cellulose 

 Carbolic acid, see Phenol 

 Carbonic dioxide, effect of on cir- 



