SUBJECT-INDEX. 



649 



I, 151, 155; development, I, 170; 

 Hertwlg's classification of tissues, 

 I, 189; functional differentiation, 



I, 203-4; waste and repair, 215-7; 

 modifiabllity and adaptability, I, 

 228-9, 230, 232; correlated varia- 

 tions, I, 536-9, 614-21, 676, 693; 

 resistance to strains, I, 639; ac- 

 tion on bones in Punjabis, I, 889: 

 differentiation, II, 361-9; activity 

 and colour, II, 365-9: integration, 



II, 376, 382: equilibration in ac- 

 tion, II, 393; activity and fertility 

 in birds, II, 470-2; future human 

 evolution, II, 523; origin of ver- 

 tebrate type, II, 598-600. 



Music: limited adaptability of voice 

 and ear, I, 231; inheritance of 

 faculty, I, 311-2, 694. 



Mutilations, the question of their 

 inheritance, I, 631. 



Mycctozoa, growth and reproduction, 

 I, 298-9. 



Myocommata (myotomes), and ver- 

 tebrate skeleton, II, 216, 217-8, 

 222. 



Myopia, inheritance of, I, 306, 694. 



Myrianida fasciata, I, 361; II, 445. 



Myriapoda: gemmation, I, 589; seg- 

 mentation, I, 590, II, 113, 114, 

 601; degenerated eyes of cave-in- 

 habiting, I, 649; integration and 

 homology, II, 111-4; genesis, II, 

 445. 



Myxothallophyta, I, 378. 



Nails, mammalian, I, 473. 



Nais: regeneration of detached 

 parts, I, 219, 361. 



Narcissus, separation of ancestral 

 traits in hybrids, II, 617. 



Natural selection: structural modifi- 

 cation, I, 211; in cell processes, I, 

 263-4; multiplication, I, 295-8; 

 aided by function, I, 308-10; spe- 

 cial creation, I, 426-7; the term 

 " survival of the fittest," I, 530; 

 indirect equilibration, I, 530-5, 

 552-3, 557, 571; changes unex- 

 plained by, I, 535-42, 571, II, 371; 

 tendency to economy, I, 536, 562; 

 decrease of jaw, I, 541, 693; gen- 

 eral doctrine of evolution, I, 543- 

 8, 557; unceasing operation, I, 



552; human races, I, 553; current 

 views, I, 559-60; panmixia and 

 cessation of selection, I, 560-3: 

 intra-selection, I, 562, 676-8; 

 Eimer's theory of orthogenesis, I, 

 564; Mr. Cunningham's criticism, 

 I, 565-6; location of mammalian 

 testes, I, 573; co-ordinated in- 

 stincts of mason-wasp, I, 574; 

 tactual perceptiveness, I, 603-8, 

 633, 646, 665, 671, 672, 692; errone- 

 ously identified with artificial se- 

 lection, I, 609, 695; reversed se- 

 lection, I, 611; blindness of cave- 

 animals, I, 613, 614, 647-8, 693; co- 

 adaptation of co-operative parts, 

 I, 614, 621, 663-5, 670, 674, 675, 

 689, 692; where operative, I, 632; 

 Weismann on conceivability of 

 process, I, 651; degeneration of 

 little toe, I, 652-3, 673; genesis of 

 caste gradations in social insects, 

 I, 654-60, 663, 670, 675, 684; self- 

 feeding instinct in ants, I, 660-2, 

 670; rudimentary organs, I, 667-9, 

 671, 692; horns of stag, I, 676-8, 

 692; musical faculty, I, 694; the 

 neo-Darwinian position reviewed, 



I, 694-5; vegetal nutrition, II, 51- 

 2; upright vegetal growth, II, 56- 

 7; endogenous growth, II, 57-8; 

 exogenous, II, 64; Navieula sym- 

 metry, II, 135; foliar, II, 158; 

 foliar distribution, II, 167, 179; 

 floral fertilization and symmetry, 



II, 168-70, 608-11; helical phseno- 

 gamic growth, II, 181; Echinodcr- 

 mata and bilateral symmetry, II, 

 197; vertebrate structure, II, 214- 

 20, 227; phsenogamic tissue differ- 

 entiation, II, 248: physiological 

 differentiation, II, 252, 256; root- 

 lets of ivy, II, 254; stomata and 

 foliar surfaces, II, 261, 262; floral 

 fertilization, II, 268-9; sexual se- 

 lection, II, 269; vegetal tissue dif- 

 ferentiation, II, 279; wood forma- 

 tion, II, 287-8, 290; animal tissue 

 differentiation, II, 304-8; evolu- 

 tion of nervous system, II, 307-8; 

 respiratory system, II, 311; der- 

 mal callosities, II, 312^; sensory 

 organ complexities, II, 321; skin 

 and mucous membrane differen- 



