SUBJECT-INDEX. 



653 



gles, II, 73-5; irregular develop- 

 ment, II, 75-8; degree of com- 

 position, II, 78; reproductive ho- 

 mology, II, 80-4; uni- and multi- 

 axial symmetry, II, 141-3; unit of 

 composition, II, 151; helical 

 growth, II, 181; secondary thick- 

 ening, II, 247; tissue and leaf dif- 

 ferentiation, II, 247-9, 387; also 

 bark and cambium, II, 249-50, 

 386; also outer tissue, II, 252, 

 256-9, 270, 386-7; wax deposit on 

 leaves, II, 260-2; differentiation 

 of inner tissues, II, 273-5, 388; 

 vascular system development, II, 

 280-4, 388; integration, II, 293-5, 

 296, 390; insect-fertilization, II, 

 407; multiplication, II, 441, 442; 

 genesis and growth, II, 451, 457; 

 and development, II, 464; and nu- 

 trition, II, 476, 477, 511; substi- 

 tution of axial for foliar organs, 

 II, 541-7. 



Phenomenon, life manifested as, I, 

 580. 



Philology (see Language). 



Phoronis, individuality, II, 444. 



Phosphorescence, organic, I, 49. 



Phosphorus: allotropic, I, 4; in cell 

 physiology, I, 259-62; cerebral ac- 

 tivity, I, 596-7; organic evolution, 

 I, 703. 



Photogenes, visibility of, I, 218. 



Phylogeny: as interpreting mor- 

 phology, II, 10-12; difficulties of 

 affiliation, II, 34-5. {See Embry- 

 ology and Evolution.) 



Physiological Units: definition, I, 

 226; genesis, I, 280-1, 316; hered- 

 ity, I, 315-9; variation, I, 330, 

 331-2, 333, II, 619: stability, I, 

 340: II, 614; self-fertilization, I, 

 342-4, 353; interbreeding, I, 345, 

 353, II, 615: recapitulation of hy- 

 pothesis, I, 350-5; II, 612-7; 

 structural proclivities, I, 362, 364, 

 369-71, II, 613, 622; sociological 

 analogy, I, 364, II, 620; complex- 

 ity in organized types, I, 368-70; 

 re-named " constitutional units," 

 I, 369; telegony, I, 650; " me- 

 chanical theory," I, 701-6; mor- 

 phological development, II, 7-9; 

 cell doctrine, II, 17-21; develop- 



ment, II, 76; " false-joints," II, 

 371-2; dissociation of ancestral 

 traits in hybrids, II, 616-7; in- 

 heritance of acquired characters, 

 II, 618-23. 



Physiological division of labour 

 (see Labour). 



Physiological Selection, I, 569-71. 



Physiology: and psychology, I, 127; 

 subdivisions, I, 128: vicarious 

 function, I, 208; primitive inter- 

 pretations, I, 417; multiplication 

 of effects exemplified, I, 512, II, 

 390; relations to morphology, II, 

 3, 239-41; evolutionary interpre- 

 tation of phenomena, II, 241-5, 

 384-95; ultimate inconceivability 

 of processes, II, 372; correlated 

 integration and differentiation, II, 

 373. 



Physiology, Animal: metabolism, I, 

 67-77; vertebrate internal sym- 

 metry, II, 108; tissue differentia- 

 tion in Protozoa, II, 299, 385; pri- 

 mary tissue differentiation, II, 300- 

 2, 382, 389; natural selection and 

 tissue differentiation, II, 304-8; 

 outer tissue in Cmlenterata, II, 

 309-10; respiratory organs, II, 

 310-1, 333-8; differentiation of 

 animal epidermic tissue, II, 312-4, 

 387; development of tegumentary 

 organs, II, 314-6; of sensory, II, 

 317-20: inner and outer tissue 

 transition, II, 321-2, 389; aliment- 

 ary canal differentiation, II, 323- 

 5; gizzard development in birds, 

 II, 325; alimentary canal of rumi- 

 nants, II, 327-9; differentiation of 

 liver, II, 329-33; of animal vascu- 

 lar system, II, 339-44; of osseous 

 system, II, 344-55; of nerve tissue, 

 II, 355-61; of muscle, II, 361-9; 

 differentiation and integration, II, 

 373-6; in vascular system, II, 376- 

 9, 383; in nerves, II, 379-82; origin 

 of development, II, 384; differen- 

 tiation and instability of homo- 

 geneous, II, 384-9, 392; summary 

 of development, II, 384-94; mul- 

 tiplication of effects, II, 390-1, 

 392; equilibration, II, 391-4. (See 

 also Function.) 



Physiology, Plant: metabolism, I, 



