638 



SUBJECT-INDEX. 



False joints, I, 230; theories of 

 heredity and, I, 362, 364, II, 371-2. 



Fats, the: physical and chemical 

 properties, I, 10-12; non-nitrogen 

 ous, I, 41; action of bile, II, 330. 



Fatty degeneration, and failing vi 

 tality, I, 41. 



Feathers, development, I, 474, II, 

 314-6. 



Feet, heredity and size, I, 311. 



Ferments, changes and nitrogen 

 ous character of, I, 38. 



Ferns: foliar development and nu 

 trition, II, 76; inner tissue differ 

 entiation, II, 273; indefiniteuess, 

 II, 296; genesis, II, 441, 463. 



Fertility, the General Law of Ani 

 mal, I, 577-601. (See Multiplica 

 tion.) 



Fertilization: unit-life of generative 

 elements, I, 185-6; the function of 

 chromatin, I, 260, 263-5; extru 

 sion of polar bodies, I, 266-8; na 

 ture and functions of generative 

 elements, I, 279-83, 317, 334, 342, 

 593-7; differentiation and varia 

 tion effected by, I, 330-2; the es 

 sential object of, I, 340-1, II, 614- 

 6; hermaphrodism and self-, I, 

 341-2; crossing and its effects, I, 

 343-7; isolation of species in re 

 spect of, I, 570; floral (see Flow 

 ers). 



Ficus, foliar structure, II, 589, 596. 



Fingers: embryogeny of human, I, 

 169; heredity and abnormal, I, 

 305, 314, 321-3; autogenous de 

 velopment of supernumerary, I, 

 363; rudimentary, I, 473. 



Fishes: sizes of ova and adult, I, 

 143-4; growth of pike, I, 154, 

 292; size and environment, I, 156; 

 temperature, I, 174; self-mobility, 

 I, 175; continuity of blastomeres, 

 I, 214, II, 327; genesis, I, 271, II, 

 435, 436; conditions affecting 

 genesis, I, 292-3, 583, 598, 599, II, 

 454; classification, I, 392; change 

 of media, I, 401, 480; distribution 

 in time, I, 408-9; climbing spe 

 cies, I, 480, 482; migrations, I, 

 500; dermal structure, I, 526, II, 

 305-6, 315, 387; Cunningham on 

 non-adaptive specific characters, 



1, 565; elongation and locomotion, 



11, 15; segmentation, II, 122, 225; 

 bilateral symmetry, II, 203-5; 

 eyes of Plcuroncctidw, II, 205; 

 genesis of vertebrate axis, II, 

 212-6, 218-21, 225; ossification of 

 paleozoic, II, 218; respiratory or 

 gans, II, 334-8; activity and mus 

 cular colour, II, 365-9; Owen on 

 skeleton, II, 552, 557, 558-60, 562, 

 564. 



Fission (see Agamogenesis). 



Flint, Austin, on telegouy, I, 644. 



Flounder, symmetry and eyes, II, 

 205. 



Flower, Sir W., on ferret, II, 480. 



Flowers: pollen propulsion in or 

 chids, I, 57; nature of reproduc 

 tive elements, I, 283; insect fer 

 tilization, I, 340, 525, II, 168, 174, 

 267, 407; self- and mutual fertili 

 zation, I, 342-5, 570; Darwin on 

 homologies, I, 472; direct equi 

 libration and fertilization, I, 524- 

 5; dimorphism, I, 534; foliar ho- 

 mology of petals, II, 43-6; sym 

 metry, II, 132, 161, 162-4, 170, 

 174, 608; fertilization and sym 

 metry, II, 164-70; clusters and 

 components, II, 170-4; nutrition 

 and inflorescence, II, 179-80, 541- 



2, 546-7; tissue differentiation, II, 

 265-9; separation of ancestral 

 traits in hybrids, II, 616-7. 



Fly, beneficial parasitism, II, 406. 



Food (see Nutrition). 



Food-cavity, genesis and develop 

 ment of, I, 188, 195. 



Foraminifera: form, I, 173; primary 

 aggregate, II, 87, 124; progress 

 ing integration, II, 89-90, 124. 



Force: action on like and unlike 

 units, I, 5; expenditure and or 

 ganic growth, I, 149-54. 161; func 

 tional accumulation, transfer, and 

 expenditure, I, 198-9, 201-3, 391; 

 waste and expenditure, I, 214-5; 

 distribution during strain, II, 209- 



12. (See also Energy, and Persist 

 ence of Force.) 



Fossils (see Palaeontology). 



Foster, Sir M., on storage of glyco- 

 gen, I, 70, 74; increase of weight 

 in hybernatiug dormouse, I, 214. 



