345 



Coleus, 295 

 Collenchyma, 267, 268 



Collodion, in, 112 



Colloids, in, 1 13, 114, 189; colloidal chlorophyll, 1 1 



Colombia, 323 



Combes, on respiration chromogens, 223 



Combustion (see also oxidation, respiration), 

 xxviii, xxx, 198, 200 



Compass plants, 278 



Complementary chromatic adaptation, 26; com- 

 plementary pigments, 26 



Concentration, of medium, 113, 272 



Configuration and growth, influence of external 

 conditions on. Pt. II, Chap. Ill, 253-305 



Conglutin, 158, 159 



Congo red, 126 



Conifers, 14, 175 



Consanguinity, 333 



Consensus partium, 329 



Conservation, of energy, xxix, xxx; of mass, xxvii 



Contact papillae, 313, 319 



Contractile roots, 250 



Convallaria, 188 



Convolvulus, 311 



Copper. 82; ferrocyanide, 112, 113; hydroxide, 157; 

 oxide, ammoniacal, 15, 23, 25; sulphate, 15, 

 112, 120, 156 



Correlations, 169, 296, 298, 329 



Correns, on self-sterility, 334 



Cortex, 132, 133, 148, 150 



Corylus, 256, 258 



Cotyledons, 149, 190 



Cr e pis, 302 



Cress, 253 



Crocker and Knight, on gas poisoning, 262; С, K. 

 and Rose, on gas poisoning, 262 



Crocus, 249, 250, 291 



Crystalloids, ill, 113, 114 



Cucumis, 314 



Cucurbita (see also gourd), 175, 191. 253, 313, 314 



Cucurbitaceen, 18, 312 



Cultures, pure, 58-61; in artificial media, 82-84 



Cuprous oxide, 199 



Curcuma. 115, 116 



Curtius and Franzen, on aldehydes in green plants, 

 30; С and Reinke, on aldehyde-like"substances 

 in green plants, 30 



Cuscuta, 47 



Cuticle, 107, 267, 268, 273, 283 



Cyanin, 120 



Cyanophycece, 21, 26 



Cynarece, 319 



Cyssus, 138 



Cystin, 160, 161 



Cystoseira, 38 



Cylisus, 77 



Cytoplasm, 154 



Czapek, on root excretions, 125; on transfer of 

 organic materials, 150; Biochemie, 155; on 

 respiration, 210, on outward diffusion from 

 cells, 270; on geotropic and phototropic per- 

 ception, 297; С and Rudolf, on perception, 297 



Dachnowski, on bog soil, 100, 101 

 Dahlia, 9. 144. 165, 303 



Dakin, on ''chlorazenc," 58 



Dandelion (see also Taraxacum), 251, 268 



Daniel, on grafts. 335 



Darwin, Chas., on evolution, 13; on traumatropism, 



.?'»); In ,, 1 1 1 i ; , 37; Climbing plants, 



311, 312; D. and Darwin, F., Movement in 

 (00 |01 . 314 

 Da J 139. (See also 



Darwin, Chi D.) 



Darwinian bending, "l roots, 300 



Dastre, on sterilizing action of light, 292; Physique 



biologique, 109 

 Daubeny, on light and photosynthesis, 22 

 Death, without injury to enzymes, 168, 169, 173, 



223-227 

 De Вагу, see Вагу, de. 

 De Candolle, see Candolle, de. 

 Deciduous trees, 288 

 Demoore, on protoplasmic permeability, 271; 



Memoire organique, 325 

 Dephlogisticated air, 2 

 Descending current, of organic substances, 133; of 



water, 268 

 Desmodium, 316, 319, 320 

 Detmer, on seed germination, 192 

 Devaux, on gas exchange of aquatics, 109 

 Development, influence of external and internal 



conditions on, 322-331; development and re- 

 production, Pt. II, Chap. VI, 322-339 

 DeVries, see Vries, de. 

 Dextrin, 38, 210 

 Dextrose, 167, 186 

 Diageotropism, 298 

 Dialysis. 104. in, 159 

 Pia a thus, 9 



Diastase, 164, 165, 333. 334 

 Dicotyledons, 148, 251 

 Diels, on alga? penetrating stone, 126 

 Dietz, on reversible enzyme action, 168 

 Diffusion, 104, ios, 107, 124, 125; differential, 



130, 131; in sieve tubes, etc., 148; through 



membranes, 106, 107, 114, 121, 122, 123; 



through pores, 108, 109; outward from cells. 



121; of gases, 104-105; of dissolved substances, 



109-119 

 Digitalis. 141 



Dihydroxyacetone, 167, 168, 231 

 I Нопога, 37 

 Dipsai us, 276 

 Diphtheria, 182, 183 

 Disc hi diu, 264, 265 

 Diseases, infectious, 182 

 Disinfectants, 58; light as disinfecting agent, 291, 



292 

 Dissociation, electrolytic, 118 

 Dissolved substances, absorption of, 1 10-126; 



diffusion of, 109-119; and water, movement of, 



133-134 

 Distilled water, as culture medium, 64 

 Dixon, on ascent of sap, 145, 146; on transpiration. 



147; D. and Atkins, on osmotic pressures in 



cells, 124; D. and Mason, on photosynthesis. 



186 

 Dodart, on geotropism, 293 

 Dodder, 47 



Dorofejew, on transplantation, 335 

 Doyere, on respiration and gas analysis, 4 



