fll2 



INDEX 



Phosphorescence, animal and plant, 254 



of chemical substances, 256 

 Phosphorus poisoning, 163, 332 

 Photometry, 449 

 Phototaxis, 447 

 *ucris, meaning of word, 2 

 Phylogeny, 178, 207, 313, 575 

 Physical world and mind, 34 



as idea, 36 

 Physiology, achievements of, 29 



and psychology, 21, 31 



cell-, 46, 477, 586 



chemical tendency of, 23 



comparative, 22, 50 



general, 25 



history of, 6 



meaning of word, 2 



methods of, 28, 53 



of organs, 49, 477 



physical tendency of, 23 



position of modern, 47 



psychological tendency of, 25 



task of, 2 

 Phytogenesis, Sohleiden's theory of, 66 

 Pigeons, fasting of, 277 

 Pigment-atrophy, 336 

 Pigment-granules, 83, 172 

 Plankton, 239, 253 

 Plants, assimilation in, 158, 287 



carnivorous, 171 



galvanotaxis of roots of, 455 



genealogical tree of, 316 



geotaxis of, 446 



in absence of oxygen, 286 



metabolism of, 164, 173 



nutrition of, 138, 274 



phototaxis of, 447 



respiration of, 287 

 Plant-albumin, 107 

 Plant-cells, narcosis of, 372 



photic stimulation of, 399 

 Plant-globulin, 108 

 Plant-physiology, 26 

 Plant-seeds, absence of metabolism in 

 dried, 132, 279 



action of temperature upon germinat- 

 ing, 391 



germination of dried, 130 



origin of carbohydrate from fat in, 

 480 



origin of fat from carbohydrate in, 

 159 

 Plasmodium, 72 

 Plasmolysis, 226 



Pleuronemd, mechanical stimulation of, 

 383 



photic stimulation of, 401 

 Pneuinii, doctrine of, 8, 9, 10, 19 

 Poikilothermal animals, 217, 257, 2.S8 

 Poisons, 337 



Polar bodirs, 196, 199, 202 

 Polarisation current, 268, 4115 



products, 268, 405 



Polymerism of biogen molecule, 486, 529 



of proteid molecule, 106 



of silicic acid molecule, 106 

 Polysaccharids, 112 

 Polyatomella, behaviour of non- 

 nucleated pieces of, 512 

 Polytoma, axial orientation of, 500 



galvanotaxis of, 457 

 Post-generation, 534 

 Poteriodendron, as reflex arc, 578 



diiTerentiation in, 539 

 Precipitation-membrane, 167 

 Preformation, theory of, 17, 535 

 Pressure as general vital condition, 



292 

 Priestley, 19 



Primordial utricle, 225, 239 

 Pt'incipium nervosum, 16 

 Proteid, 103 



as characteristic of the organism, 

 125, 310, 479 



as primitive food, 141, 555 



as source of muscle energy, 553 



chemical formulie of, 104 



circulating, 160 



classification of, 107 



coagulation of, 106 



combined, 108 



crystallising, 105 



decomposition-products of, 109, 162, 

 175, 305, 482 



digestion of. 151 



living and dead, 304, 481 



localisation of, in cell, 116 



non-diffusibilitj' of, 104 



polymerism of, 106 



reserve-, 161 



self-decomposition of living, 304, 478 



tests for, 107 



tissue-, 160 

 Proteun, in hunger, 276 



sensitiveness of, to light, 397 

 Protista, 51, 178, 316 



immortality of, 341 

 Protophyta, 316 

 Protoplasm, 27, 65, 80 



alveolar structure of, 86 



and nucleus, 296, 511 



as emulsion, 96 



circulation of, 239 



conception of, 80, 481 



consistency of, 93 



contents of, 81 



fibrillar structure of, ,S5 



granular disintegration of, 473 



ground-substance of, 85 



hyaline, 85 



reticular structure of, 85 



rotation of, 239 



solid constituents of. SI 

 K|irrific gravity of, 97 

 sphiiical form of, 94, 95, 3S7 

 streaming of, 94, 220, 237 



