INDEX. 



811 



Chloral hydrate, used to make 

 leaves transparent, 18 



Chlorine, estimation of in ash, 281 



Chloroform, effect of on assimila- 

 tion, 32 ; on circulating proto- 

 plasm, 15 ; on stamens of Ber- 

 beris of, 195 ; poisonous effect 

 on Oxalis, 15 ; use of in pre- 

 serving solutions, 229 



Chlorophyll, appearance in etio- 

 lated plants of, 46 ; effect of 

 acid on, 44 ; of copper on, 44, 

 45 ; of light on solution of, 44 ; 

 of warmth on appearance of, 47 ; 

 iron necessary for production of, 

 48 ; oxygen necessary for pro- 

 duction of, 48 ; reactions of, 43 ; 

 spectrum of, 45 



Chloroplasts, movement of, 198 



Chlorosis, 49 



Chrysanthemum, warmth produced 

 by respiration of, 7 



CiesielsM on decapitation of roots, 

 159; on roots curving when 

 wetted on one side, 162 



Circulation of protoplasm, effect of 

 heat on, 12 



Circumnutation, 209 ; of twining 

 plants, 211 



Clover useful for iodine method, 

 17, 21, 26 



Cocoa-butter, used for injection of 

 vessels, 83 



CoefScient, isotonic, 117 



Coesium, in fungus-culture, 63 



Goleus, pigment of, 45 



Compression, effect on transpira- 

 tion current of, 84 



Copper, effect on chlorophyll so- 

 lution of, 44 



Cornus sanguinea, lentioels of, 99 



Gorylus, horizontal branches of, 

 180 



Cotyledon, bloom of, 99 



Crocus, opening and closing in 

 response to changes in temper- 

 ature, 202 



Cross-cuts, effect on transpiration 

 of, 85 



Cucurbita, peg or heel of, be- 

 haviour on Klinostat, 176 



Culture without 00^ , 24, 25 

 Curcuma rubricaulis, for osmotic 



experiment, 117 

 Curvature due toinjury,contaot&c., 



159; geotropic, 150; heliotropicj 



165 ; region of coincides with 



region of growth, 150, 151 ; 



sudden, of apogeotropic shoots, 



157 

 Curvatures due to growth, 150 ; 



produced by dividing turgescent 



tissues, 128, 129 

 Cyanophyll, 43 

 Cyclometer, 125 

 Cynara, irritable stamens, 196 n. 



Daisy, see Bellis 



Dandelion flowers, warmth pro- 

 duced by respiration of, 7. See 

 also Taraxacum 



Darkness, effect of, on sensitiveness 

 of Mimosa, 188 



Darwin, C, on circumnutation, 

 209 ; on decapitation of roots, 

 159, 160 ; on movements of 

 Desmodium, 214 ; on digestion 

 of Drosera, 64 n. ; references to 

 experiments on feeding Drosera, 

 65 n. ; stimulation of Drosera 

 by touch, 192 ; by dilute solu- 

 tions, 193; on heliotropism, 

 165 ; on roots curving away 

 from injured side, 162 ; on 

 Sachs' curvature, 144 n.; on 

 sleep of leaves, 205 n. ; on 

 transmission of heliotropic stim- 

 ulus, 167 n. ; on twining plants, 

 211 n. 



Darwin, F. , experiments on feeding 

 Drosera, 65 n. ; on growth of 

 mustard-roots in light and dark- 

 ness, 149 ; on the Elinostat, 

 170, 174 ; modification of Vel- 

 ten's hot-stage, 13 n. 



Darwin, F., and Phillips, E., on 

 transpiration, 72; on cheeking 

 transpiration current by com- 

 pression, 84 



Darwin, H., his form of recording 

 auxanometer, 140 ; his pattern 

 of Klinostat, 170 ; his form of 



