586 



SUBJECT-INDEX. 



decomposition by, /, 31 ; organic oxida- 

 tion, 1, 43-6, 57 ; growth and organic, 

 1, 124 ; animal, vegetal, and environ- 

 ment, 1, 145-6, 149; alloy melting 

 points, 1, 276 ; organic change and 

 rhythm in terrestrial, 1, 411, 473; 

 effect on physiological units, 1, 488 ; 

 fish respiratory organs, 2, 325 ; evolved 

 by noil -nitrogenous substances, 2, 353 ; 

 animal preservation, 2, 414 ; verte- 

 brate expenditure and genesis, 2, 447- 

 8, 453 ; insect genesis, 2, 455. 



Hectoeotylus, individuality, 1, 207. 



HepaticcBs Schleiden on, 2, 47, 49; 

 continuous and discontinuous develop- 

 ment, 2, 49 ; vascular system, 2, 263 ; 

 genesis and development, 2, 442. 



Seradeum : leaf symmetry, 2, 139-40 ; 

 floral symmetry, 2, 156 ; axial and 

 foliar organs, 2, 511-16. 



Heredity : structural modification, 1, 

 189 ; general truths, 1, 238-41 ; trans- 

 mission of congenital peculiarities, 1, 

 241-4 ; atavism, or recurrence of an- 

 cestral traits, 1, 243, 252 ; structure 

 and altered function, 1, 24i-52, 255- 

 6; physiological units, res tone, 2,286- 

 91; natural selection, 1, 460-2, 469, 

 474 ; ethnology and natural selection, 



1, 469 ; cell doctrine, 2, 12 ; physio- 

 logical development, 2, 224, 229; 

 wood formation, 2, 270 ; tissue diffe- 

 rentiation, 2, 286, 295-9, 330 ; respira- 

 tory system, 2, 293 ; osseous differen- 

 tiation, 2, 342; muscular adaptation, 



2, 359 ; persistence of force and phy- 

 siological adaptation, 2, 387 ; vegetal 

 vascular system, 2, 543, 551, 557, 565. 



Hernia phrodism, vegetal and animal, 1, 

 278-9, 280. 



Heterogeneity : of vital change, 1, 65-71, 

 88, 90; of development, 1, 138-41, 150; 

 functional, 1, 160-4, 168 ; of organic 

 matter, 1, 286-91 ; organic, and in- 

 stability of homogeneous, 1, 421-3, 

 430, 465, 473 ; segregation of evolu- 

 tion, 1, 426-8, 429-31, 465. 



If eterogenesis : classification, 1, 210-6, 

 273; animal nutrition, 1, 228-33, 

 235-7; naWiral selection, 1, 233-7; 

 heredity, 1, 238. 



Histology (see Physiology). 



Hollyhock, floral symmetry, 2, 152, 154. 



Homogeneous, instability of the: vari- 

 ation, 1, 264-7, 237-8, 269-70, 280; 

 evolution, 1, 421-3, 428, 465, 473; 



morphological development, t, 7-9, 

 216; direction of vegetal growth, , 

 164 ; radial symmetry, 2, 173 ; phy- 

 siological differentiation, 2, 377, 385. 

 Homogenesis (see Gamogenesis). 

 Homology, articulate integration, , 99- 



102, 108. 



Hooker, Sir J. D. : European plants in 

 New Zealand, 1, 389; vegetal dis- 

 tribution, 1, 391 ; amphibious and 

 terrestrial plants, 1, 396; vegetal 

 growth, 2, 53 ; balanophorce, 2, 244 j 

 balanopJiora and rafftesiacece, 2, 257; 

 structural complexity, 2, 278, 280; 

 vegetal and animal distribution and 

 age, 2, 280 ; bean vascular system, 2, 

 543. 



Hooker, Sir W., onjungermanniacece, 2 t 

 49. 



Horns, natural selection and size, /, 

 451-3. 



Huxley, Prof. T. H. : "continuous" 

 and " discontinuous " development, 

 2, 135 ; life without organization, 1, 

 154; pseud-ova, 1, 214 ; classification 

 of development, 1, 215 ; hermaphro- 

 disni, 1, 281 ; zoological classification, 

 1, 301-3, 307 ; " On persistent types," 

 1, 324-6; the cell-doctrine, 2, 13; 

 Spongidts, 2, 81 ; articulata, 2, 101 ; 

 vertebrate embryo, 2 , 108, 108 ; echino- 

 dermata, 2, 179; molluscan sym- 

 metry, 2, 185 ; ossification, 2, 207 ; 

 ccelenterata, 2, 285 ; tegumentary 

 organs, 2, 286, 297, 300; vertebrate 

 sensory organs, 2, 304, 305 ; Kyber on 

 aphis, 2, 455 j Owen's vertebrate 

 theory, 2, 532. 



Hyacinth, symmetry, 2, 126, 147. 



Hydra (see Catlenterata). 



Hydro-carbons : physical properties, 1, 

 6 ; chemical properties, 1, 8, 9 ; of 

 living tissue, 1, 10 ; tissue differentia- 

 tion, 2, 363. 



Hydrogastrum : symmetry, 2, 122 ; 

 sexual genesis, 2, 429. 



Hydrogen: chemical and physical pro- 

 perties, 1, 3-5, 20, 22 ; binary com- 

 pounds, 1, 6, 8, 9; ternary, 1, 10-12 j 

 quaternary, 1, 12-14, 23. 



Hydrozoa (see Ccelenterata), 



Hymenoplera (see Insects). 



Hypertrophy (see Disease). 



IDEAS (see Psychology). 



