662 



SUBJECT-INDEX. 



ment of vegetal, II, 273-5, 279-84, 

 285-8, 388; differentiation of, sum- 

 mary, II, 288-90, 388; differentia- 

 tion of animal, II, 339-44; osseous 

 development, II, 347-51; muscu- 

 larity, II, 364; muscular colour, 

 II, 365-9; heart-motor apparatus, 

 II, 374; differentiation and Inte- 

 gration in animal, II, 376-9, 383; 

 wood formation, II, 567-92; re- 

 sum6 of wood formation, II, 592-7. 



VaucJieria, reproduction, I, 279, 289. 



Vegetative System, co-ordination of 

 actions In, I, 578. 



Vegeto-alkalies, physiological ef- 

 fects of, I, 54-5. 



Velocity, of moving bodies, II, 219- 

 20. 



Tertebrata: size, I, 139; size at 

 birth and maturity, I, 144; axial 

 structure, I, 165; embryonic de- 

 velopment and self-mobility, I, 

 175; functional differentiation, I, 

 206, 591; reparative power, I, 219, 

 223, 589; homogenesis universal, 



I, 271; distinctive traits, I, 392, 



II, 35; distribution in time, I, 

 408; classiflcatory value, I, 446; 

 embryonic mammalian respiratory 

 system, I, 456; einbryological pre- 

 adaptation, I, 461; evolution and 

 vertebral column, I, 470; rudimen- 

 tary organs, I, 473; evolution and 

 varied media, I, 479-85; size of 

 head and vertebra, I, 512, 537; 

 segregation and evolution of 

 vertebrae, I, 515; fertility and 

 development, I, 583, 598-9; Weis- 

 mann on reproductive cells, I, 

 635; limb locomotion, II, 15; adap- 

 tive segmentation, II, 117-23, 

 125-7, 223, 602, 605-7; supernu- 

 merary vertebrae, II, 123; bilat- 

 eral symmetry, II, 203-6; Internal 

 organic symmetry, II, 208; gene- 

 sis of rudimentary axis, II, 212-6; 

 natural selection and genesis of 

 structure, II, 216, 227; origin of 

 notochord, II, 216-8; spinal seg- 

 mentation, II, 218-22, 224; skull 

 development, II, 222, 227; rsum6 

 of axis development, II, 224; 

 Cope on author's theory, 11,225-7; 

 nerve differentiation, II, 304; sen- 



sory organs, II, 318; air chambers, 

 II, 334; osseous differentiation, II, 

 344-55; activity and muscular col- 

 our, II, 365-9; heart-motor appa- 

 ratus, II, 374; cost of genesis, II, 

 436; agamogenesis unknown, II, 

 445; growth and genesis, II, 454; 

 heat expenditure and genesis, II, 

 468-9, 474; Owen, theory of skele- 

 ton, II, 548-66; evolution of verte- 

 brae, II, 563-6; origin of type, II, 

 598-600. 



Vestiges of Creation, I, 491. 



Vibrissae, function of, I, 75. 



Vitalism, hypothesis examined, I, 

 114-7. 



Vittadini, C., on silkworm disease, 

 I, 622-3. 



Viviparous genesis, I, 271, 274-5, 

 278. 



Voice, correlated sexual traits, I, 

 371-2. 



Volcano, definition of life and, I, 

 85, 89. 



Volvocinca: unicentral development, 

 I, 163; individuality, I, 245; disin- 

 tegration of genesis, I, 276, 587; 

 spherical aggregation, II, 24; sym- 

 metry, II, 137, 187; fertility, II, 

 441. 



Vomiting, alimentary canal devel- 

 opment, II, 328. 



Vorticella: secondary aggregate, II, 

 90; symmetry, II, 188. 



WALLACE, A. R.: "The Origin of 

 the Human Races," I, 553; the ex- 

 pression " Survival of the Fit- 

 test," I, 530; his association of 

 natural with artificial selection, I, 

 609; co-adaptation in giraffe, I, 

 615; skin sensitiveness, I, 646. 



Wasp: co-ordination of instincts in 

 Mason-, I, 574, 679-80; genesis of 

 worker, I, 654-7. 



Waste, animal, I, 69, 213-5, 228; re- 

 lation to activity, I, 196, 220-1; in 

 plants, I, 213, 220. 



Water: properties, I, 7, 9; colloidal 

 affinity for, I, 28; organic change 

 from, I, 29; organic need for, I, 

 147; proportion in mammalian 

 adult and foetus, I, 154; motion 

 through, I, 156; organic develop- 



