400 



INDEX 



Germinal infection, ii. 69. 



Germinal Selection, ii. 113 ; influenced by 

 personal selection, ii. 155 ; relation of 

 determinants to determinates, ii. 153; 

 combination of mental gifts, ii. 150 ; 

 influence of amphimixis, ii. 125 ; in- 

 fluence of the multiplicity of ids, ii. 124 ; 

 objections on the score of smallness of 

 the substance of the germ-plasm, ii. 156; 

 degeneration of a species through culti- 

 vation, ii. 144 ; there are only plus and 

 minus variations, ii. 151 ; excessive in- 

 crease of variations, ii. 139 ; basis of 

 sexual characters, ii. 135 ; its sphere 

 of operation, ii. 127 ; small hands and 

 feet in the higher classes, ii. 147 ; cli- 

 matic foi*ms, ii. 134 ; l)ud-variations, ii. 

 141 ; play of forces in the determinant 

 system, ii. 154; artificial selection, ii. 123; 

 short-sight, ii. 146 ; milk-glands, ii. 147 ; 

 deformities, ii. 137 ; muscular weakness 

 in the higher classes of men, ii. 147 ; 

 positive variation, ii. 122 ; regulated by 

 personal selection, ii. 131 ; source of 

 purely morphological characters, ii. 132; 

 disappearance of disused parts, ii. 119, 

 129 ; self-regulation of the germ-plasm, 

 ii. 128 ; specific talents, ii. 149 : sport- 

 variations, ii. 140 ; spontaneous and 

 induced, ii. 137 ; excessive increase of 

 a variation tendency, ii. 130; prepon- 

 derance of panmixia, ii. 120 ; origin of 

 secondary sexual characters, ii. 143. 



Germinal vesicle, 295. 



Germ- plasm, conception of, 410; con- 

 tinuity of, 411; at once variable and 

 persistent, ii. 220; disintegration of, 

 in ontogeny, 379 ; nutritive variations 

 within the, 379 ; structure of the, 373 ; 

 variation of, due to environment, ii. 267 ; 

 to nutrition, ii. 268. 



Germ-plasm theory, 345 ; accessor}' idio- 

 plasm, 383 ; active and passive state of 

 determinants, 379 ; connective tissue- 

 cells, 386 ; determinants and determi- 

 nates, 355 ; lithium-larva^, 383 ; ids, 

 conception of, 349 ; idants. 349 ; male 

 and female ids, 389; mesoderm cells of 

 sea-urchin, 387 ; plant-galls, 385 ; poly- 

 morphism, 390 ; proofs of existence of 

 determinants Lycama agestis, insect 

 metamorphosis, &.c.^', 356 ; sexual di- 

 morphism. 388. 



Germ-tracks, 411. 



Gesner's Book of Animals, 13. 



Goclelmann, regeneration of Phasmids, 

 ii. 28 n. 



Goebel, 269. 



Goethe, archetypal animal and plant, 18. 



Green animals, 64. 



Gruber, A., regeneration experiments on 

 the Protozoa, 340. 



Guignard, fertilization of Phanerogams, 



315. 

 Gulick, snails in the Sandwich Islands, 

 ii. 329. 



Haase, Erich, on Pharmacopagte, loi : on 



mimicry, 104. 

 Haberlandt. protection of leaves, ii. 133 ; 



Auxo-spores, ii. 221. 

 Haeckel, Ernst, fundamental biogenetic 



law, ii. 173 ; monogony and amphigony, 



267 ; palingenesis and coenogenesis, ii. 



173 ; genealogical trees, ii. 388. 

 Hacker, Valentin, importance of the 



nucleolus, 287 ; separateness of paternal 



and maternal nuclear substance during 



development, ii. 42 ; process of nuclear 



division, 291. 

 Hahnel, observations on the enemies of 



butterflies. 154 ; lizards and birds as 



enemies of butterflies, 97, 98. 

 Hallei', 267. 

 Harmony, pre-established, apparently 



existing in development, ii. 309. 

 Hartog, views on amphimixis. 334; ii.194. 

 Haycraft, on the equalizing effect of am- 

 phigony, ii. 203. 

 Heidenhain, theory of mitotic division, 



291. 

 Heider. on the intimate processes of seg- 

 mentation of the ovum, 'regulation' 



and ' mosaic' ova, 409. 

 Heliconiidac*. first example of immune 



butterflies. 91. 

 Henslow, on purely morphological specific 



differences, ii. 308. 

 Herl)st, lithium-larvae. 383; ii. 277. 

 Hereditary sequence, alternation of, ii, 50. 

 Hering, his reasons for assuming the 



inheritance of functional modifications, 



ii. 110. 

 Hermaphroditism in flowers, ii. 250 ; in 



animals, ii. 239 ; advantages of, ii. 239. 

 Herrich-SchJifer, on mimicry, 105. 

 Ilertwig. O.. fertilization of sea-urchin 



eggs, 293 ; theory of development, 354 ; 



differential cell-division, 376 ; inlierit- 



ance of functional modifications, ii. 106 ; 



maturation divisions of the sperm-cells, 



300. 

 Hertwig, E., chromosomes in Actino- 



sphierium, ii. 216. 

 Heterogony, ii. 244. 

 Heteromorphosis, Loeb on, ii. 7. 

 Heterostylism. ii. 254. 

 Heterotopia, 365. 367. 

 Hii'ase, fertilization of Phanerogams, 



313- 

 Histonal selection, 240 ; and personal 



selection. 280. 

 Hiibner. O.. experiments on regeneration 



in Volvox. ii. 4. 

 Humming-birds, species fixed by isolation, 



ii. 290. 

 Hyatt, Alpheus, the snail-strata of Stein- 



heim. ii. 305. 

 Hybrids, ii. 60 ; of pigeons, 34 ; plant, ii. 



57- 

 Hydra, regeneration in, ii. 4. 



Hydroid jiolyps. development of germ- 

 cells in, 411. 



