634 



SUBJECT-INDEX. 



I 



Dendrobium (see Orchids). 



Desmidiaccw: unicellular, II, 21; 

 linear and central aggregation, II, 

 23; natural selection and sym- 

 metry, II, 134, 135; morphological 

 differentiation, II, 177; tissue, II, 

 244; genesis, II, 440, 449. 



Determinants, Weismann's germ- 

 plasm units (see Germ-plasm). 



Development: an increase of struc- 

 ture, I, 162, II, 461; primarily 

 central, I, 162, 166; uni- and mul- 

 ti-central, I, 163-4, 166-7; axial, 

 I, 164, 167; uni- and multi-axial, 



I, 165-6; a change to coherent 

 definite heterogeneity, I, 167-70, 

 179; Von Baer's formula, I, 171-2; 

 individual differentiation from 

 environment, I, 172-8; cell forma- 

 tion, I, 225; discontinuous, and 

 agamogenesis, I, 275; Prof. Hux- 

 ley's classification, I, 276; socio- 

 logical parallel to autogenous, I, 

 364-8, II, 620; retrograde, I, 457- 

 8: inequalities among co-operative 

 parts, I, 617; " heterochrony," I, 

 655; continuous and discontinuous 

 vegetal, II, 52; summary of 

 physiological, II, 384-90; nutri- 

 tion and genesis, resume, II, 497- 

 9; evolution, II, 501-5; commence- 

 ment of genesis, II, 506; of ver- 

 tebrate limbs, II, 553. (See also 

 Multiplication.) 



Development Hypothesis, The, I, 417. 

 Dialects (see Language). 

 Dialysis, and diffusibility, I, 19, 20. 

 Diastase, decomposition of, I, 38, 



40. 

 Diatomacece: tissue, II, 244; genesis, 



II, 440, 448. 



Diatomic compounds (see Chem- 

 istry). 



Dicotyledons: growth, I, 139, 143, 

 II, 63-4, 69-72, 78, 82-3; uniaxial 

 development, I, 165; stem and 

 leaf functions, II, 257; mechani- 

 cal stress and wood formation, II, 

 277; growth and genesis, II, 451. 



Differentiation (see Morphology and 

 Physiology). 



Difflugia: primary aggregate, II, 86- 

 7; symmetry, II, 186; outer tissue 

 differentiation, II, 309. 



Diffusion, of colloids and crystal- 

 loids, I, 18-20; II, 331. 



Digestion: action of nitrogenous 

 compounds, I, 69; obesity, II, 

 480-4; fertility, II, 514. 



Dimorphism: floral, I, 534; sexual, 

 in parasites, I, 315; social insects 

 (see Insects). 



Dinosaurs, size of, I, 139. 



Diphyes: individuality, I, 246; sym- 

 metry, II, 192. 



Disease: segregation of blood con- 

 stituents, I, 179; changes in 

 blood from, I, 221, 701; heredity, 



I, 306-7, 312-3, 622-3; belief in 

 supernatural origin, I, 419; para- 

 sitism and special creation, I, 

 427; morbid products as specific 

 characters, I, 567; telegony, I, 

 646; dermal structure, II, 306; in- 

 testinal muscular hypertrophy, II, 

 325; indigestion and alimentary 

 canal development, II, 328; jaun- 

 dice and bilirubin, II, 330; locali- 

 zation of excretion, II, 331; mem- 

 branes in inflammatory, II, 343; 

 osseous differentiation in rickets, 



II, 352; fatty degeneration, II, 

 482. 



Disintegration, physiological (see 

 Physiology). 



Distoma: metagenesis, I, 273-4; dis- 

 integration of genesis, I, 276; 

 cycle of generations, II, 489. 



Distribution: physical limits, I, 396; 

 organic environment, I, 396-8; 

 parasitic conditions, I, 397-8; sim- 

 ultaneity of agencies affecting, 

 I, 398; mutual encroachments of 

 species, I, 398-401, 477, 489; facts 

 disproving pre-adaptation to habi- 

 tats, I, 401-3, 411-2; of animals 

 and plants in time, I, 404-11, 412; 

 ousting of native species in New 

 Zealand, I, 477; local influences, 

 I, 477-9, 489; through varied 

 media, I, 479-85, 489, 556; past 

 and present organic forms, I, 

 485-9, 556; complex organization 

 and, II, 296-7. 



Division of labour, physiological 

 (see Labour). 



Dog: contrasted lives of tortoise 

 and, I, 103, 104; inherited habits, 



