272 



INDEX 



Multicellular organization, 48 



Mutability, necessary to change, 

 41-42 



Mutations, of genes, 35-38 



Mutual aid, 177-180 

 among animals, 71-74 

 evolution of, 215-18 

 innate drive toward, 224-27 



Nagasaki, 62 



National Resources Committee 



declining I.Q., 210 

 Natural selection of Darwin, 7, 71- 



72, 83, 238 

 Naturalistic ethic, 228-30 

 Nature, moves slowly, 6 

 Neanderthal man, 62-63, 65 

 Nebular hypothesis, 13-15 

 Negroes, 64-65, 90, 101-3 

 Neolithic men, 96 

 Neopallium, 131 

 Nervous system 



of echinoderms, 123-24 



organization of, 120 



of vertebrates, 128 

 Neuroid transmissions, 121-22 

 Neurons, 120-22 

 Nissen, H. W., 122-24, 127, 133-34, 



159 

 Nitrides, 26-27 

 Nordic, 65 



Northrop, F. S. C, 174-75 

 Notochord, 51 

 Nucleoproteins, 37 



Occidental, 187 



Old Man, influence in family life, 



92-96 

 Oparin, A. L, 26-28, 32 

 Oppenheimer, Robert, 18 

 Organisms, 6-8 



learn to synthesize, 32 



reproduce in \vild excess, 189-92 



as principle of order, 160 

 Organization 



in evolution, an endless chain, 

 235-36 



nature's drive to, 117-19 



Organizing drive of evolution, 3- 



10,177-80,215-16 

 Origins 



of mind, 108-19 



of speech, 169 



problems of, 89-90 

 Ortega Y. Gasset, 204 

 Osborn, Frederick, 209-10, 213-14 

 Ostracoderm, 50 

 Overpopulation, 242 



among Bantus, 103 



dangers of, 189-202 



in Japan, 196-200 



in Puerto Rico, 196-99, 202 



in the U. S., 201 



responses to, 194-95 



tendency toward, 76 

 Overreproduction, 189-202 

 Oyster, birth rate of, 189-90 



Paleolithic age, 96-97 



Paleolithic man, 168-69 



Paleozoic era, 46, 50, 52 



Palolo, spawning of, 126 



Palomar, giant reflector at, 13, 17, 



21 

 Paramecium 



behavior of, 115-16,138 



birth rate of, 190 

 Paranthropos, 60 

 Parent-offspring relationship, 180 



among animals, 73-74 

 Parker, G.H., 121-22 

 Paternal responsibility, among pri- 

 mates, 91 

 "Peck order," 78, 92, 95, 98, 99, 220 

 Peckham, Mr. and A4rs. G. W., 140- 



41 

 Philosophical leadership, need for, 



248-49 

 Physical background, of evolu- 

 tion, 11-22 

 Pithecanthropus erectus, 61-62 

 Pitts, W., 174 



Planets, discussion of, 23-26 

 Plants 



and animal progression, 44-45 



evolution, slow, 46-47 



