Selection, natural, action of, transferred to mind in man, 99 amongst animals, 75 and origin of species, 82 explanation of, 75, 87 modification of, by man, 96, 99 modified by mind, 93 process of, 112 two modes of, 125 Selection, new form of, 125 sexual, 125 Selective agency to improve character, 36 Sherard's, Mr. R. H., _White Slaves of England_, 51 (_note_) Slavery, 2, 115 Slums, 47, 151 Smyth, Piazzi, on Pyramids, 18 Snowden, Philip, 53 Social environment and conduct, 6 character of, 153 during 19th century, 40 evils of, causes and remedies of, 154 reorganisation, the rich and, 156 reform, 143; and over-population, 138 Socrates, 8 Species, increase of, 82, 84 origin of, natural selection, and, 82 variability of, 82 Speech as proof of intelligence, 28 lowest races possess, 31 origin and development of, 29 Spencer, Herbert, 89, 99, 103 exposition of evolutionary argument by, 81 on laws of increase of population, 141 Stanley, Hiram M., quoted, 128 Struggle for existence, 85, 86 Suicide, statistics of, 70 Survival of the fittest, 85, 87, 139 "Survival value," 39 Swedenborg, 137 Tahitians, character of, 32 Tinning trade, evils of, 51 Unhealthy trades, 50 Universe, development and purpose of, 119 Variability, character and, 36 basic law of nature, 96 explanation of, 82 of species, 82 purpose of, 90 Vedas, quoted, 11 War, 74 Wealth, increase of, 41, 150 Webb, Mr. Sidney, quoted, 65 Women and marriage, 133 excess in numbers of, 134, 147 future status of, 147 in trade, 151 Workmen's compensation, Prof. Petrie on, 139 Writing as proof of intelligence, 28 origin and development of, 29 Zoophytes, 95 Zymotic diseases 47 PRINTED BY CASSELL & COMPANY, LIMITED, LA BELLE SAUVAGE, LONDON, E.C. 10.613 TRANSCRIBER'S NOTES The following corrections have been made to the original text: Page 26: Nile as a human being, with desires,[comma missing in original] Page 113: to luxury and civilisation[original has "civilisa/tion" split across a line break without a hyphen] Page 161: Le Conte[original has "Coute"], Prof., quoted, 139 [139:A] Professor Joseph Le Conte[original has "Coute"], in _The Monist_ In the Index, entries repeated across page breaks and columns have been removed. End of the Project Gutenberg EBook of Social Environment and Moral Progress, by Alfred Russel Wallace