224 



INDEX 



Coefficient (equation), personal, 49 



Coenobium, 178 



Coins, equilibrium of, 116, 119, 121, 122 



ColchicacecB, 99 



Coleoptera, 97 



Collections, importance of, 212 



CoUumbien, 13 



Complex species, 14 



Complexity, 11, 14 



Compound properties, 40 ; decomposi- 

 tion of : in the course of individual 

 development, 46 ; by gradation, 45 ; 

 by hybridization, 40 ; by plasticity, 



43 . , 



Concordance, mechanical, 79 



Conifer a, 196 



Constants, biological, 174, 181 ; tables 

 of, 218 



Copper-beech, 43 



Correlation, 56 



Correns, 35, 37 



Cortex, 112 



Cosson, 208 



Crampton, H. E., 114 



Cratisgus, 91, 192 



Crepin, Fr., 216 



Crimson Rambler (Rose), 13 



Cucumber, 195 



Cultivation, 17, 174 



Curve, biological variation, 28, 165 

 167 ; dimorphic, 185 ; polymorphic, 

 185 ; of errors, 145 ; of growth, 153- 

 158 ; inorganic variation, 158-167 ; 

 unilateral variation, 151. See 

 Embryological, Embryology 



Cuttings, 90 



Cuvier, 66, 80, 212 



D 



Dominant character, 33 

 Donax, 113 

 Drosera, 81 

 Duck, 195 

 Durand, Th., 210 



ECHINODERMS, 77 



Echium, 196 



Elementary species,' 7, 1 1 

 Embryological curves, 153-158, 193, 



204; series, 193, 196 ; parallelism, 



196 

 Embryology : curves of development, 



61 ; variation in, 62 ; method, 50, 



80, 212 

 Endodermis, 112 

 Epidermis, 98, iii 

 Epilobium, 18 j 

 Equation, personal, 49 

 Equilibrium, 51 

 Erica, 78 

 Eristalis, 19 

 Erodium, 87 



Errors of observation, 145 

 Erythrcsa, 21 

 Euastropsis, 78, 180 

 Eucharidium, 181 

 Evans, W. D., viii 

 Existence, conditions of, 167 

 Experiments (investigation of critical 



specific forms by), 14, 2i6 ; with 



cards, 163 

 External factors, 167 

 Eye, 49 

 Eye-shaped spots, 196 



Dactylis, 18, 222 



Darwin, 15, 16, 19, 45, 46, 49, 51, 60, 



195, 197. 208, 214 

 Darwinism, 17 

 Dautzenberg, Ph., 24 

 Davenport, C. B., 31 

 Deschampsia, 44, 209 

 Description of species, quantitative, 



207, 218 ; vague and inexact, 209, 



216, 217 

 Details, importance of, 213 

 Determiners, 41 

 Die, equihbrium of a, 125, 127 

 Dietel, 192 



Differentiation, 72, 101, 201 

 Dipsaceis, 6 

 Dipsacine, 6 

 Dipsacotine, 6 

 Dipsacus silvestris torsus, 22 

 Disorder, 105 

 Dissociation, in hybrids, 34. See 



Segregation 



178 



Factors, hereditary, 41 



Fagus, II, 43, 56, 88, 175 



Fasciation, 20 



Fats, 2 



Fertilization, self and cross, 49 



Festuca, 219 



Fibonacci numbers, 



Ficaria, 1 7 



Fossils, 212, 214 



Fowl, 195 



Frequency, 118 



Fritillaria, 99 



Frontignan (grape), 16 



Fuchsia, 181 



Fumaria, 89 



Galton, Francis, 30, 31, 214 

 Gamophyllous corolla, calyx, 89 



