SUBJECT-INDEX. 



(For this Index as it appeared in previous editions the Author is indebted to F. 

 HOWARD COLLINS, Esq., of Edgbaston, Birmingham. It has now been adjusted 

 to suit the present revised and enlarged edition.) 



ACACIA, foliar organs, II, 41, 264. 



Acalcphtf: environment, I, 103; 

 water in, I, 173. 



Acari: special creation and effects 

 of, I, 428; direct transformations, 

 I, 706; segmentation, II, 111. 



Acorus calamus, agamic propaga 

 tion, I, 642. 



Acquired characters, inheritance 

 of: functionally-produced modi 

 fications in plants and animals, 

 I, 307-13, 318, 526, 541, 562, 692- 

 5, II, 618-22; conceivability of, 

 on the hypothesis of physiologi 

 cal units, I, 368-71, 695, II, 618- 

 22; diminution of .law, I, 541-2, 

 693; current views on, I, 559-60; 

 cessation of selection, I, 560-3; 

 Elmer s theory of orthogenesis, 

 I, 560; species differentiation, I, 

 573; location of mammalian 

 testes, I, 573; tactual perceptive- 

 ness, I, 602-8, 633, 665, 666, 672-3, 

 692; blindness of cave-animals, I, 

 612-3, 647-9; coadaptation of co 

 operative parts, I, 621, 663-5; 

 transmission of disease, I, 622-3; 

 hypothesis supported by telegony, 

 I, 624-8, 644-6, 649-50; views of 

 Darwin and neo-Darwinists, I, 

 030, 685, 690; why facts in sup 

 port are meagre, I, 632; degrada 

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

 neuter forms of social insects, I, 

 658-9, 663-4, 670, 675; degenerated 

 instinct in ants, I, 660-2; rudi 

 mentary limbs of whale, I, 669, 

 692; importance of question, I, 

 672, 690; monstrous development 

 of honey-ants, I, 683-4; osteology 

 of Punjabis, I, 689; summary of 

 evidences in support, I, 692-5; 



genesis of vertebrate skull, II, 

 227; false joints, II, 371, 372; con 

 ceivability of rival hypotheses, II, 

 618-22; adaptation to environment 

 in Aspcrgillus, II, 623. 



Acrogens, the term, II, 55-6. (See 

 A rchcgonia tea;. ) 



Actinophrys: a primary aggregate, 

 II, 76, genesis, II, 452. 



Actinozoa: multiaxial development, 

 I, 166; waste and repair, I, 213, 

 219; differentiation, I, 391: para 

 sitism, I, 397; integration, II, 92; 

 symmetry, II, 189, 192; growth 

 and genesis, II, 444. 



Activity: the principle of, the es 

 sential element in Life, I, 113, 

 114, 122; not inherent in living 

 matter, I, 120; nutrition and gene 

 sis, resume, II, 497-9; and evolu 

 tion, II, 501-4. 



Adaptation: general truths, I, 227- 

 33, 233-5; botanical, I, 227; physio 

 logical, I, 228-33; psychological. 

 I, 229, 230-3; structural, func 

 tional, and interdependence, I, 

 235-9, 240-1, 318; social and or 

 ganic stability, I, 240-2; resume, I, 

 242-3; to varied media. I, 479-81, 

 489, 556: multiplication of effects, 

 I, 512-3, 550; direct equilibration, 

 I, 522-3; natural selection and 

 equilibration, I, 530-5; non-adap 

 tive specific characters, I, 565; 

 time required for effecting, I, 

 565-6; an obstacle to re-adapta 

 tion, II, 11; of skin and skele 

 ton, II, 215, 217; outer tissue, II, 

 312-4, 387; skin and mucous mem 

 brane differentiation, II, 321-2; 

 389; vascular system, II, 343-4; 

 osseous, II, 352; muscular, II, 



625 



