INDEX 



395 



Oogenesis 



Habrobracon, 177 

 Opossum, 76 

 Orlandi, A., 311 

 Orstrom, A., 173 

 Osmium tetroxide, 274 

 Owen, R. D., 351 

 Oxidoreductase, 325 

 Oxytocin, 75 

 Oyama, J., 353 



P^-, see Radiophosphonts 

 Paigen, K., 284 

 Painter, T. S., 4, 177, 205 

 Palade, G., 268, 276 

 Palazzo, F., 330, 333, 334 

 Pangens, 270 

 Panijel, J., 4, 8, 264 

 Pantelouris, E. M., 217, 218 

 Paracentrotiis lividus, 45, 46, 49 

 Paralysis, immunological 



pneumococcal polysaccharide and, 

 353 

 Paramecium, 193, 368 

 Parat, M., 89 

 Parker, G. H., 76 



Parkes, A. S., 87, 90, 112, 115, 125 

 Parmenter, C. L., 211 

 Parthenogenesis, mammalian, 90, 

 110, 114, 127 



polar bodies and, 115 

 Patiria miniata, 36, 38 

 Pauling, L. 365 

 Penners, A., 176 

 Pentose nucleic acid, see Nucleic 



acid 

 Perforatorium, 135, 139, 163 

 Perlman, P. L., 77 

 Perlmann, P., 169, 345, 360 

 Peroxidase 



blocking of, 336 

 Petiicola japonica, 136 

 Petromijzon, 296 

 Phelps, H. J., 357 

 PhilHps, R. W., 77, 79, 81, 82 

 Phosphatase 



inhibition by beryllium, 333 



Phosphorylases 



blocking of, 336 

 Photoreactivation, 193-195 

 Physa eggs, 331, 334, 335 

 Pig, 75, 77 

 Pincus, G., 86, 87, 110, 111, 114- 



119, 121-125 

 Pirie, N. W., 87 

 Pitotti, M., 324, 332 

 Placenta 



transfer of antibodies through, 

 350 

 Plant sperm 



chemotaxis of, 26, 84 

 Plasmagenes, 270, 280 

 Plasmatic rhythm, 281, 284 

 Plaut, W., 4, 16 

 Plaut, G. W. E., 73 

 Pluteus 



mitochondria in, 276, 283 

 Polarity, 265 



PolHster, A. W., 204, 236, 273 

 Polplasma, 330 



Polyploidy, 177, 204, 219, 220 

 Polyspermy, 77, 185 



block to, 85, 91, 114, 120 

 Pomatocews triquester, 57 

 Pomerat, C. M., 354 

 Pommerenke, W. T., 79 

 Popa, G., 31, 139 

 Porter, K. R., 263 

 Prechordal plate, 292 

 Preformation, 345 

 Prism larvae, 276 

 Pronuclei 



in mammalian fertilization, 121 

 Protamines, 25, 53 

 Proteins, 192 



action of different agents on, 305 



basic, 25, 53 



changes following fertilization, 

 169 



demolition, 307, 310, 313 



denaturation, 304, 307 



fibrillar, 304 



globular, 302 



in malformed embryos, 299, 307 



