INDEX OF SUBJECTS 



401 



Potency 199 



Purpose! 11, 249, 255, 258, 259, 298; 



Divine, 249; unconscious of, 255, 



259 

 Purposiv(!ness, 248, 249, 262; no 



intelligence, 262; objective, 248, 



249; unconscious, 248 



Quadrumana, 296 

 Qasr-el-Sagha, 115 

 Quaternary, 98, 319; Early, 319 



Races, 334, 342 



Radiation, pressure of, 183 



Radioactive elements, 56 



Radio-activity, 118 



Radiolaria, 118 



Radiometer, 183 



Radius, shows curvature, 327 



Ragweed, 16 



Raft of Red River, 154 



Random Assortment, 27, 42; of 

 chromosomes, 27 



Ratio, body-brain, 317 



Rays, 119 



Reactants, 209 



Reaction, 243, 252; elementary, 

 motor, 252; historical basis of 

 243 



Reaction-systems, 26, 204 



Reason, 235, 240, 244, 245, 259, 

 267, 343; not evolved, 267; sole 

 means of human preservation, 

 343; superorganic power of, 244, 

 245 



Reasoning, 207, 220 



Recapitulation, 48, 275, 278, 279, 

 285; embryonic, 48, 275, 278. 

 279 



Receptors, 57, 213, 222; extended, 

 necessary to perceive material 

 stimuli, 222 



Recessive chin, 311 



Recognition, 207 



Recombination, 27, 42; chromo- 

 somal, 27; factorial, 27 



Reconstructions, 89, 90, 92, 321 ; of 

 fossil skulls, 321; psychological 

 motivation of, 89, 90; scientific, 

 89, 90, 92 



Recuperation, autonomous, 163 



"Recurrent faunas," 110 



Reduction, 42, 157 



Reflection, 224, 225, 226, 240, 256; 

 a fact, 225, 226; alleged impos- 

 sibility of, 225; only possible to 

 spiritual agent, 224; undeniable 

 fact of, 225 



Reflexes, innate and conditioned, 

 238 



Reflexion, 225 



Reflexive orientation, 174, 176; 

 of energies, no living being, 176; 

 of forces in living organism, 174, 

 in living being, 201 



Regression of organ, 305 



Regulation, 253; intelligent, 253; 

 sensory, 253 



Rejuvenation, 155, 161, 163; three 

 kinds of, 161 



Rejuvenescence, 160, 161, 162 



Reign of Terror, 357 ; French, 357 ; 

 Russian, 357 



Reindeer, 332 



Re-integration of atoms, impos- 

 sible, 163 



Relationships, 254; causal and 

 telic, 254; supersensible, 254 



Religion, 354, 361 ; only sanction 

 of morality, 361 



Remains, Javanese, 318 



Repair-work, 251, 252 



Reproduction, 5, 24, 25, 26, 56, 68, 

 69, 137, 141, 156, 157, 158, 159, 

 161; biparental (bisexual), 24, 

 158; cytogenic, 156, 157, 158, 159, 

 161 ; link between life-cycles, 

 156; nonsexual, 156 — three kinds 

 of, 156, 157; reducible to cell- 

 division, 163; sexual, 25, 156, 

 157 — autosexual, 158, 159 — bi- 

 sexual, 158 — unisexual, 158 ; 

 somatogenic, 156, 157, 158, 159, 

 180, 161— limited, 161— no reju- 

 venation in, 161 



Reptiles, 61, 80, 281, 282, 296, 301; 

 flying, 80; palaeozoic and mod- 

 ern, 296 



Resemblance, 38, 54, 58, 63, 79, 80, 

 284, 340, 341; compatible with 

 separate ancestry, 63, 80 — even 

 specific, does not entail common 

 origin, 79, 80; family, 54, 56; 

 generic, 38, 56; heterogenetic, 

 80; ordinal, 56; phyletic, 56; 



