INDEX 



469 



Nervous system, development of, 



148, 149, 155 

 tissue, regeneration of, 414 



Nettling cells, 126, 128 



Neuman, 218 



Neuraxis, 150 



Neuron, 150 



Neurone, motor, diagram of, 151 



Neurophages, 451 



Neutrophilic granules of leuco- 

 cytes, 95 



Nose, restoration by grafting, 427 



Nuclear membr-ane, 98 

 spindle, 105 



Nuclein, 98 



Nucleolus of the cell, 98 



Nucleus of the cell, 97 

 division of, 102 



Nussbaum, 259 



Nutrition, holophytic, 90 

 holozoic, 90 



Nuttall and Buchner, 387 

 on blood relationship, 317 



OBELI A, reproduction in, 196 



Obligatory parasite, 332 



Occasional parasites, 332 



Oken's classification, 307 



Old age, 443 



Olfactory organs, development 



of, 163 



Omne vivum ex vivo, 28 

 Ontogenesis, 209 

 Oogenesis, 204, 206 

 Oogonium, 190 

 Opalina, 338 

 Opsonins, 389 

 Optimum temperature, 39 

 Orbitolites, 113 

 Orders, 309 

 Organ of Corti, 163 

 Organs of special sense, 156, 157 

 Origin of life, 20 

 "Origin of Species," 288 

 Ornithodorus moubata, 349 

 Otocysts, 162 

 Otoliths, 162 

 Ottenburg, 323 

 Ova, 204 

 Ovid on spontaneous generation, 



21 



Ovists, 212 



Ovum, fertilization of, 207, 208 



segmentation of, 217 



mammalian, 100 

 Owen, 202 

 Ox-warble, 344 

 Oxygen, fish and, 54 



stimulating effects of, 52 

 Oxygenation of blood, 144 

 Oxytropism, 52 

 Oxyuris vermicularis, 340, 354 



P^DOGENESTS, 203, 211 



Paleontology, 303 



Pangenesis of Darwin, 252 



Paragonimus westermanii, 339 



Paralinin, 98 



Paramoecia, electric stimulation 



of, 61 

 Paramoecium, conjugation in, 183 



cytoplasmic circulation in, 73 



locomotion in, 77 

 Paranucleus, 98 

 Paraplasm, 97 

 Parasite, 331 



Parasites, classification of, 338 

 Parasitism, 327 



proper, 331 

 Parmelee, 167, 168, 169, 170, 172 



on consciousness, 175 

 Parthenogenesis, 189, 202 

 Parthenogenetic development, 



189, 202, 203 



Pasteur (Louis) and infectious 

 diseases, 393 



and rabies, 396 



Pasteur's experiments on spon- 

 taneous generation, 26 

 Patterson, 218 



Pediculoides ventricosus, 350 

 Perithecium, 186 

 Pfeffer, 43, 47 

 Phagocytosis, 385 

 Phagolysis, 388 

 Photic stimulation, 54 

 Photosynthesis, 89, 90 

 Phyla, 308 



Phylogenetic cells, 259 

 Physicochemical basis of vital 



phenomena, 321 

 Physodes, 97 



