IX.--DARWIN’S SECTION OF THE JOINT MEMOIR READ BEFORE THE LINNEAN SOCIETY JULY 1, 1858 65 X.--WALLACE’S SECTION OF THE JOINT MEMOIR READ BEFORE THE LINNEAN SOCIETY JULY 1, 1858 71 XI.--COMPARISON OF DARWIN’S AND WALLACE’S SECTIONS OF THE JOINT MEMOIR--RECEPTION OF THEIR VIEWS--THEIR FRIENDSHIP 78 XII.--THE GROWTH OF WALLACE’S CONVICTIONS ON EVOLUTION AND DISCOVERY OF NATURAL SELECTION--BORNEO 1855--TERNATE 1858 87 XIII.--CANON TRISTRAM THE FIRST PUBLICLY TO ACCEPT THE THEORY OF NATURAL SELECTION (1859) 92 XIV.--THE PREPARATION OF THE “ORIGIN OF SPECIES” (1858–59) 95 XV.--THE ORIGIN OF SPECIES (1859) 100 XVI.--THE INFLUENCE OF DARWIN UPON LYELL (1859–64) 105 XVII.--INFLUENCE OF DARWIN UPON HOOKER AND ASA GRAY--NATURAL SELECTION AND DESIGN IN NATURE (1860–68) 111 XVIII.--INFLUENCE OF DARWIN UPON HUXLEY 119 XIX.--THE DIFFICULTY WITH WHICH THE “ORIGIN” WAS UNDERSTOOD 144 XX.--THE DIFFICULTY WITH WHICH THE “ORIGIN” WAS UNDERSTOOD (_continued_)--VIEWS ON SPONTANEOUS GENERATION 153 XXI.--VARIATION OF ANIMALS AND PLANTS UNDER DOMESTICATION: PANGENESIS (1868) 161 XXII.--PANGENESIS AND CONTINUITY OF THE GERM-PLASM: DARWIN’S CONFIDENCE IN PANGENESIS 178 XXIII.--DESCENT OF MAN--EXPRESSION OF EMOTIONS--EARTH-WORMS (1871–81) 186 XXIV.--BOTANICAL WORKS (1862–86) 193 XXV.--LETTERS FROM DARWIN TO PROFESSOR MELDOLA (1871–82) 199 XXVI.--HIS LAST ILLNESS (1882) 219 INDEX 221 CHARLES DARWIN AND THE THEORY OF NATURAL SELECTION. CHAPTER I. THE SECRET OF DARWIN’S GREATNESS. Charles Robert Darwin was born at Shrewsbury on February 12th, 1809, the year which witnessed the birth of Alfred Tennyson, W. E. Gladstone, and Abraham Lincoln.