INDEX 



419 



teg., 131, 185, 201, 222, 249, 299, 



Personality, 9, 201 et seq., 231, 250, 



264, 267. 329, 362. 



Personal equation, xxiii., 366, 389. 

 Pessimism, 375 et seq., 384, 387 et 



seq. 



" Pflanzen-Raubtier," 17, 41, 98, 198. 

 Phagocytes, 77, 299, 354. 

 Pheidias ratio, 184. 

 Philosophy, inverting metaphysics, 



6, 24, 187. 



physiological, 321. 389. 

 Phosphorescence, 224 et seq. 

 Photosynthesis, importance therof, 

 8. 14 et seq., 16, 35, 51, 67, 114, 

 150, 173, 193, 210, 232, 257, 

 269. 



Physical substratum of memory, 362. 

 Physiological basis of life, 365, 383. 

 Physiological units, 266. 

 Pickering, Spencer, U., on grafting, 



107 et seq. 



on pruning, 110 et seq. 

 on contact of roots with soil, 112 



et seq. 



on fertilisation, 120. 

 Plague, transmission of. 56 et seq. 

 Plankton, and balance of life in sea, 



23 et seq., 31 et seq. 

 Plant, viewed as a community, 23 



et seq., 31 et seq. 

 compared to butterfly, 32 et seq. 

 in trade-relation with the animal, 

 18 et seq., 37, 46, 98, 105, 119. 

 236, 258. 

 contrivance against depredation. 



18. 41, 46. 235 et seq., 320. 

 evolution determining animal 

 evolution, 18, 46, 51, 98. 193. 

 209, 228. 236. 



productiveness and status, 27, 50, 

 104, 208 et seq., 211, 232, 237, 

 255. 

 vascularity according to work, 96 



et seq. 

 monstrosity resulting from absence 



of work, 175. 

 as accumulator, 104. 351. 

 self-fertile, 178. 

 secreting cellulose, 207. 

 faithful symbiogenetic servant, 1, 

 18, 46, 104, 209, 228, 237, 244, 

 351. 

 problems of existence, 14, 15, 41, 



208, 228, 233, 237. 

 secrets of protein manufacture, 16, 



238. 

 provision of valuable stimulations, 



31, 43, 209, 227 et seq. 

 benefittine from cross-feeding, 61. 

 66, 110 et seq.. 113 et seq.. 228 

 et seq., 230, 232 et seq., 258. 



Plant-acids, 227, 237. 



Plantagens, 23 et seq., 31 et seq., 



68, 87, 115, 142 et seq., 169, 



190, 264 et seq., 354. 

 Plant-animal evolution, 4 et seq., 



18, 40, 42 et seq., 48, 52 et seq., 



Plasticity, 41, 202. 



Plato, on friendship, 140 et seq., 148 



et seq. 



anticipating Darwinism, 140 et seq. 

 anticipating Mendelism, 146 et 



seq. 



on relatedness, 146 et seq. 

 on abnormal appetites, 274. 

 Plimmer, H. G., F.R.S., on the com- 

 position of blood, 289. 

 Plutarch, 403. 



Poisons, produced by plants in self- 

 defence, 41, 235 et seq., 300. 

 Polarity, 195 et seq., 244, 265 et seq. 

 Pollen, poisonous effect on stigma, 



169, 179. 



Political Economy, 140, 257, 261. 

 Population, 239, 309, 350. 

 Positive and negative factors of 



evolution, 78 et seq. 

 Potato, as a source of vitamines, 



30, 322. 



juice curative, 326, 327. 

 Poulton, Prof. E. B., on evolution 



of Coelomata, 124. 

 on heredity, 124. 

 on rate of progress, 129 et seq. 

 on Lamarck's theory, 335. 

 Precocity, 40, 48. 

 Pre-determination, 80 et seq., 95 



333, 338, 362, 366. 

 Predisposition, 286 et seq., 310, 322 



et seq., 326. 

 Prepotency, 134 et seq. 

 Prevention better than cure, 296, 



326. 



Primitive characters, 237. 

 Primordial community of function, 



262 et seq. 

 " Private " property, 158 et seq., 



167. 



Productiveness, 8, 26, 27, 41, 44, 50, 



51, 67, 71, 72, 95, 120, 137, 164, 



210, 237, 242, 255, 269, 270. 308. 



Progenitor, 18, 76 et seq., 123 et 



seq., 144, 271, 338. 

 Progressive evolution depending on 

 production, xv., 27, 44, 50, 51, 

 67, 71. 95. 120, 125 ft seq., 137, 

 210, 237, 255, 308 et seq. 

 Property rights recognised by 



animals. 142. 

 Prophylaxis, 291. 



Proportion, 172 et seq., 234, 338. 

 Protein, fever, 295. 

 intoxication, 295. 



