INDEX 
Neo-Mendelism, 43, 44, 45, 413-32 
Nest-making instincts, as adaptations, 
197 
Nettleship, E., 400, 461 
Newman, Colonel, 211 
Newton, Sir F., 7, 276, 277, 280, 283 
New Zealand, fauna of, 110, 111 
Nictitating membranes of vertebrates, 
146, 147 
Nilsson-Ehle, H., 424-28 
Nitsche, Dr., 155 
Nucleolus: chromatin, 290; true, 290 
Nutritive chains, 208 
Nuttall, G. H. F., 124, 125 
Nutting, C. C., 258-62 
Oceanic islands, fauna of, 101-10 
Octopus, eye of, 135 
Oenothera, 35; O. albida, 355; O. 
biennis, 349; O. brevistylis, 349 ff.; 
O. elliptica, 355; O. gigas, 353 ff.; 
O. lata, 355; O. laevifolia, 349 ff.; 
O. lamarckiana, 37, 346-60; 
leptocarpa, 357; O. nannella, 349 ff.; 
O. rubrinervis, 353 ff.; O. scintillans, 
355; O. spatulata, 357 
Oglivie, Dr., 326 
Oken, 12, 16 
Onagra biennis, 362 
Ontogenetic selection, 268 
Odcyte, 300 
Odgenesis, 299, 300 
Oégonium, 300 
Organic selection, 268, 269 
Origin of Species, The, 4, 5, 7, 24, 275 
61, 62, 67 
Ornithorhynchus, 236 
Orohippus, 72, 73 
Orr, H. B., 465 
Orthogenesis, 33, 34, 35, 36, 273 
Orthoplasy, 268 
Osborn, H. F., 8, 10, 11, 13, 20, 21, 45, 
86, 87, 89, 94, 95, 192-95, 273, 274-83 
Overspecializations, 31 
Ovum, 164 
Owen, R., 121, 150, 240 
Pagurus bernhardus, 139 
Palaeomastodon, 76, 77, 78 
Palaeontology, evidences from, 60; 
opinions as to the adequacy of, 62, 63; 
strength and weakness of, 61, 62 
521 
Palingenetic, 174 
Pan vetus, 88 
Pangenesis, 28, 36 
Panmixia, 31, 263, 264 
Panniculus carnosis, 148, 149 
Papilio machaon, 315 
Paramecium, 377 
Parasitism, as adaptation, 197, 198 
Parthenogenesis: as a method of 
asexual development, 164; sex deter- 
mination in connection with, 451, 452 
Pearl, R., 440 
Pearson, K., 39, 365, 371; 373, 484, 489, 
491, 493 
Pedigree: of brachydactylism, 460; 
of cataract, 461; of Charles the 
Great of Sweden, 471; of feeble- 
mindedness, 463, 464; of Ferdinand 
and Isabella, 468; of Hohenzollerns 
of Prussia, 470; of insanity, epilepsy, 
etc., 465; of Romanoffs of Russia, 
467 
Peneus potimirium, 170, 171 
Phaseolus, 376 
Phenotype, 377-79, 390, 431 
Phenotypic, 377-79, 390, 431 
Phillips, J. C., 333 
Phocochaerus, 324, 325 
Physiological units, 28 
Pisum quadratum, 381; P. saccharatum, 
381; P. sativum, 393; P. umbellatum, 
381 
Pithecanthropus erectus, 86, 87, 88, 90, 93 
Planetesimal hypothesis, 57 
Plate, L., 264, 265, 371 
Pliny, 14 
Pliohippus, 72 
Ploetz, A., 489, 490, 491 
Podocoryne, 246 
Poébrotherium, 74, 75 
Polar bodies, 299, 300, 301 
Popenoe, P., 484-96 
Post-Aristotelians, 14 
Poulton, E. B., 257 
Preformation doctrine, 176 
Prenatal influences, 13, 14 
Presence and absence hypothesis, 413- 
15 
Primates: geologic record of, 82; origin 
of, 81, 82; place of origin; stock of, 
81; time of origin, 81 
