SUBJECT-INDEX. 



186; primordial plant-animal type, 

 II, 397-8: symbiosis, II, 400, 

 Protyle, hypothetical chemical unit, 



I, 22, 23. 



Pseud-axial development, vegetal, 



II, 28-9, 30. 



Pseudo-foliar development, vegetal, 

 II, 26^8, 30. 



Psychidw: parthenogenesis, I, 275; 

 sexual dimorphism, I, 683. 



Psychology: reasoning and defini- 

 tion of life, I, 81-8; correspond- 

 ence shown by recognition, I, 95; 

 contrasted with physiology, I, 

 127; departments of, I, 127-8; 

 vicarious function, I, 209; waste 

 and repair in sensory organs, I, 

 217; sensory adaptability, I, 229, 

 231, 232; inheritance of sensory 

 defects, I, 306; musical talent, I, 

 311-2; intellectual progress and 

 special-creation hypothesis, 1,417; 

 special-creation a pseud-idea, I, 

 420, 429, 433, 554; legitimacy of 

 evolution-hypothesis, I, 433-5, 

 439, 554; embryology of ideas, I, 

 450, 457; persistent formative 

 power unrepresentable, I, 492; E. 

 Darwin's and Lamarck's theory of 

 desires, I, 494; natural selection 

 and brain evolution, I, 553; gene- 

 sis and cerebral activity, I, 594, 

 II, 512-4, 516-9, 530; heredity and 

 distribution of tactual perceptive- 

 ness, I, 602-8, 646, 665-6, 672, 

 692; inconceivability of the nega- 

 tion, I, 675; vitiation of evidence, 

 II, 88; repetition and perception, 

 II, 143; differentiation of sensory 

 organs, II, 317-20; differentiation 

 of nerve tissue, II, 355-61; func- 

 tional integration, II, 376; also in- 

 tegration, II, 380-2; equilibration 

 of nerve discharge, II, 393; human 

 fertility and nerve development, 

 II, 466, 532; future human evolu- 

 tion, II, 523-5, 527; human evolu- 

 tion and genesis, II, 529-31; future 

 mental development, II, 535; origin 

 of vertebrate type, II, 598-600. 



Pteridophyta: size attained by, I, 

 138, 139; homologies, II, 80-1, 82; 

 frond surface differentiation, II, 

 260. 



Pteropoda: bilateral symmetry, II, 

 201; dermal respiration, II, 310. 



Ptyaline, metabolic function, I, 69. 



Punjabis, inheritance of acquired 

 osteological peculiarities, I, 689. 



Pyrosomidw: phosphorescence, I, 47; 

 integration, I, 588, II, 97. 



Quagga, telegonic transmission of 

 markings to offspring of mare, I, 

 624, 627, 646. 



Quills, development, II, 314-6. 



Rabbit: activity and muscle col- 

 our, II, 365; over-running checked 

 by weasels, II, 405; expendi- 

 ture and genesis, II, 472. 



Radial, definition, II, 148. 



Radiolaria: unicentral development, 



I, 163; secondary aggregation, II, 

 88; symmetry, II, 187. 



Radula, development of roots from 

 leaflets, II, 34. 



Rafflcsiaccce: homogenesis, I, 272; 

 tissue differentiation, II, 274; nu- 

 trition and genesis, II, 486. 



Rat (see Rodentia). 



Rathke, H., on vertebrate embryo, 



II, 119. 



Ray, J., plant classification, I, 378. 



Reasoning, compared with assimila- 

 tion, I, 81-7. 



Recapitulation, embryological, I, 

 453. 



Regeneration (see Repair). 



Rejuvenescence, and sexual fertili- 

 zation, I, 637; II, 613. 



Remak, R., vertebrate embryo, II, 

 120. 



Repair: continuity of, I, 216-9; ani- 

 mal injuries, I, 219, 222-4, II, 102, 

 611; deductive interpretation, I, 

 221-2; theories of heredity and 

 regenerative phenomena, I, 360-1. 



Repetition of like parts, II, 126. 



Reproduction (see Multiplication). 



Rcptilia: growth and expenditure of 

 force, I, 142; sizes of ova and 

 adult, I, 144; longevity of croco- 

 dile, I, 154; temperature, I, 174; 

 waste, I, 214; distinctive charac- 

 ters, I, 392; distribution in time, 

 I, 409, 412; vertebral segmenta- 

 tion, I, 470; rudimentary limbs of 



