436 



INDEX 



Ovary, 191 



Ovid on spontaneous genera- 

 tion, 21 



Ovists, 194 



Ovum, segmentation of, 199 

 development of, 190 

 mammalian, 99 



Oxygen, fish and, 54 

 stimulating effects of, 52 



Oxygenation of blood, 143 



Oxytropism, 52 



Oxyuris vermicularis, 310, 324 



Ox-warble, 314 



PALEONTOLOGY, 275 

 Pangenesis of Darwin, 226 

 Paragonimus westermanii, 309 

 Paralinin, 97 

 Paramoscia, electric stimulation 



of, 61 



Paramoecium, conjugation in, 

 169 



cytoplasmic circulation in, 73 



locomotion in, 77 

 Paranucleus, 97 

 Paraplasm, 96 

 Parasite, 301 



Parasites, classification of, 308 

 Parasitism, 297 



proper, 301 

 Parthenogenetic development, 



175 



Pasteur and infectious diseases, 

 363 



and rabies, 366 



experiments on spontaneous 



generation, 26 



Pediculoides ventricosus, 320 

 Perithrecium, 172 

 Pfeffer, 43, 47 

 Phagocytosis, 355 



Phagolysis, 358 

 Photic stimulation, 54 

 Phyla, 280 



Phylogenetic cells, 233 

 Physicochemical basis of vital 



phenomena, 293 

 Physodes, 96 

 Phytoprecipitation, 289 

 Pin-worm, 324 



Plague serum of Haffkine, 369 

 Planaria, regeneration in, 374 

 Plant cells, 96 



parasites, 316 



parasitism, 304 

 Plantade, 194 

 Plants and electric currents, 60 



cell wall of, 99 



classification of, 283 



conductivity in, 69 



effect of light on, 56 



fertilization by insects, 186 



geotropic reactions of, 64 



grafting in, 408 



regeneration in, 387 



reproduction in, 185 

 Plasmodia, 97, 110 

 Plasmodium malarise, 308, 328 

 Plenciz, 24 



Plett and vaccination, 362 

 Poisons, 46 



reactions to, 344 



tolerance of, 342 

 Polar bodies, 191 



field, 103 

 Polioplasm, 94 

 Polydactylism, a Mendelian 



characteristic, 247 

 Precipitation, 289, 290 



specific, measurement of, 291 

 Precipitins in blood relation- 

 ship, 290 

 Preformation theory, 194 



