INDEX 



453 



Pangenesis of Darwin, 240 

 Paragonimus westermanii, 325 

 Paralinin, 98 

 Paramcecia, electric stimulation 



of, 61 



Paramo3cium, conjugation in, 

 171 



cytoplasmic circulation in, 73 



locomotion in, 77 

 Paranucleus, 98 

 Paraplasm, 97 

 Parasite, 317 



Parasites, classification of, 324 

 Parasitism, 313 



proper, 317 



Parthenogenesis, 177, 190 

 Parthenogenetic development, 



177, 190 



Pasteur (Louis) and infectious 

 diseases, 379 



and rabies, 382 



Pasteur's experiments on spon- 

 taneous generation, 26 

 Pediculoides ventricosus, 336 

 Perithecium, 174 

 Pfeffer, 43, 47 

 Phagocytosis, 371 

 Phagolysis, 374 

 Photic stimulation, 54 

 Photosynthesis, 89, 90 

 Phyla, 296 



Phylogenetic cells, 247 

 Physicochemical basis of vital 



phenomena, 309 

 Physodes, 97 

 Phytoprecipitins, 305 

 Pin-worm, 340 



Plague serum of Haffkine, 385 

 Planaria, regeneration in, 390 

 Plant cells, 97 



parasites, 332 



parasitism, 320 



Plantade, 200 



Plants and electric currents, 60 

 cell wall of, 100 

 classification of, 299 

 conductivity in, 69 

 effect of light on, 56 

 fertilization by insects, 188 

 geotropic reactions of, 64 

 grafting in, 424 

 regeneration in, 403 

 reproduction in, 187 



Plasmodia, 98, 112 



Plasmodium malariae, 324, 344 



Plenciz, 24 



Plett and vaccination, 378 



Poisons, 46 



reactions to, 360 

 tolerance of, 358 



Polar bodies, 195 

 field, 105 



Polioplasm, 95 



Polydactylism, a Mendelian char- 

 acteristic, 261 



Precipitation, 305, 306 

 specific, measurement of, 307 



Precipitins in blood relation- 

 ship, 306 



Preformation theory, 200 



Prevost, 202 



Primitive groove, 213 

 streak, 213 



Proglottides, 349 



Pronucleus, 196 



Prophase, 102 



Proskauer, 87 



Protandrism, 183 



Protandry, 187 



Protein, 84 



Prothallium, 186 



Protogyny, 188 



Protophyta, 93 



Protoplasm, 19, 31, 84 



