Chlorpromazine, 307 Christian ethics, 167, 379, 380 of reproduction, 275 on man's purpose, 293 on right to have children, 283 Cities, see also Towns and civilization, 169 and food technology, 42 breakdown of, 1 46 ecology of, 1 1 effect of over-population, 15 Civilization (s), and cities, 169 growth of, 126 metropolitan, environment of, 143 saturation of, by science, 1 7 1 Clark, CoHn, 23-35 Co-enzymes, 240 Comfort, Alex, 2 1 7-229 Communication, 173 between machines, 1 7 1 clumsiness of, 272 difficulties of, 325-326 extraterrestrial, 270-273 science of, 1 54 Computers, political use of, 162, 174 problems of, 171 scope of, 1 60 simulation of human brain, 181 use in medicine, 182 Conception, excess of males at, 94, 114 with preserved spermatozoa, 98 402 Index Congenital malformations, due to contraceptive agents, i lo Conscience, 328-329, 331 Constipation, and diet, 48 Contraception, 79, 341 by control of ovum growth, 88 by rhythm method, 105, 107 by use of hot baths, 105 by vasectomy, 106 comparison of methods, 84, 85 effect of genetics, 253-254 incorporation of agents into food, 103, 104 objections to, 308 political aspects, 10 1 possible use of thymus extract, 108 public opinion, 10
