SUBJECT-INDEX. 



641 



with evolution, II, 401-2; vegetal, 

 and asexual genesis, II, 439-42; 

 animal, and asexual genesis, II, 

 442-5; antagonistic to asexual 

 genesis, II, 446; vegetal and sex- 

 ual genesis, II, 448-51; animal 

 and sexual genesis, II, 452-6, 495; 

 antagonistic to soxual genesis, II, 

 457-8; nutrition and genesis, re- 

 sume, II, 497-9; evolution and, 

 II, 501-5; commencement of gen- 

 esis, II, 500; fertilization and 

 restoration of growth-energy, II, 

 613. 



Gulick, T. : on monotypic and poly- 

 typic evolution, I, 569; physio- 

 logical selection, I, 569-71. 



Gunpowder, nitrogenous instability, 

 I, 8, 43. 



Gymnotus, electricity of, I, 51. 



Gyrodactylus elcgans, rapid succes- 

 sion of generations, I, 641; II, 

 488. 



Habit, change of, in plants, I, 308. 



Haemal, term applied to female ele- 

 ment, I, 594-5. 



Hairs: non-conductors of heat, I, 

 526; vegetal, and natural selec- 

 tion, I, 532; development, II, 314- 

 6; tactual organs, II, 317. 



Hand: embryogeny, I, 169; heredity 

 and size of, I, 311; distribution of 

 veins, I, 364. 



Hardy, W. B., I, vii; II, vi. 



Hare: activity and muscular col- 

 our, II, 365; expenditure and 

 genesis, II, 472. 



Hart, J. A., on " Parasol " ants, I, 

 687-8. 



Haviland, G. D., collection of Ter- 

 mites, I, 687. 



Haystack, chemical action in, I, 74. 



Head, structural influence of size, 

 I, 512, 537. 



Hearing: the sense of, I, 54; multi- 

 plying agencies, I, 75. 



Heart (see Vascular System). 



Heat: action on di- and tri-atomic 

 compounds, I, 7-8, 10-12, 23, 24; 

 on colloids and crystalloids, I, 26; 

 organic changes from evaporation, 

 I, 29; chemical decomposition by, 

 I, 33; organic oxidation, I, 46-9, 

 87 



60; growth and organic, I, 152-3; 

 animal, vegetal, and environment, 

 I, 174-5, 177; alloy melting points, 



I, 339; organic effects of rhythm 

 in terrestrial, I, 498, 557; effect 

 on physiological units, I, 705; 

 respiration in fishes, II, 337; ani- 

 mal preservation, II, 434; verte- 

 brate expenditure and genesis, II, 

 468-9, 474; insect genesis, II, 476; 

 seasonal variations and genesis, 



II, 484-5; in germination, II, 615. 

 Hebrew idea of creation, I, 421. 

 Hectocotylus, individuality, I, 250. 

 Hellin, D., on multiparity and 



twin-births, II, 457. 



Hen, what prompts her to pick up 

 egg-shell fragments? I, 120. 



Henslow, Rev. G., inheritance of 

 functionally-produced changes, I, 

 560. 



Hepaticw: Schleiden on, II, 51, 52; 

 continuous and discontinuous de- 

 velopment, II, 52< phyletic homo- 

 logies, II, 80-4; meaning of so- 

 called alternating generation, II, 

 84; vascular system, II, 280; gene- 

 sis and development, II, 463. 



Heredity: structural modification, 

 I, 232; function of cell-nucleus in, 

 258-59; general truths, I, 301-4; 

 transmission of congenital pecul- 

 iarities, I, 304-7; structure and 

 altered function, I, 307-13, 318-9 

 (see also Acquired Characters); 

 atavism, or recurrence of ances- 

 tral traits, I, 314; sex limitation, 

 I, 314-6; physiological units, re- 

 sume, I, 350-5; II, 612-6; Darwin's 

 and Weismann's theories exam- 

 ined, I, 356 et seq., 559-61; II, 622; 

 true theory must include plants, 

 I, 358; inadequacy of theory of 

 physiological units, I, 360-1; so- 

 ciological parallel, I, 366-8; natu- 

 ral selection (q. v.), I, 545-7, 553, 

 557; ethnology and natural selec- 

 tion, I, 553; unsolved problems, I, 

 573-4; mutilations, I, 631; ulti- 

 mate process incomprehensible, I, 

 695; cell doctrine, II, 19; physio- 

 logical development, II, 242; wood 

 formation, II, 287; tissue differ- 

 entiation, II, 304, 312-4; respira- 



