opposition of Sedgwick and Whewell, 83;
support of Herschel, 83

Euclid, influence on Darwin, 108

FARADAY, M., assistance given to Lyell by, 47

FITTON, Dr, on supposed indebtedness of Hutton to Generelli, 18;
and of Lyell to Hutton, 18;
on causes of Hutton's failure to reform geology, 23, 25;
his attitude towards Lyell's views, 30, 71

Fluvialists, 58

FORBES, DAVID, intercourse with Darwin, 119

Fossil bones, discovery of, in South America first suggests to Darwin
mutability of species, 102

_Foundations of the Origin of Species_, 123

FRAZER, J. G., on legends of creation, 5, 7

Galapagos Islands, influence of study of fauna on Darwin, 104

GENERELLI, advocacy of Evolution, 17, 20

Geographical distribution, Lyell on, 65;
Wallace on, 146

Geological Society, foundation of, 25;
early history, 26;
connexion of Lyell with, 44, 71:
of Darwin, 100, 105:
of Scrope, 50;
discussions on rival doctrines at, 24, 25, 29, 30, 60, 76, 77, 105

Geology, Darwin's interest in, 96, 99, 124, 147, 158

GIBBON, his influence on Lyell, 52, 67

GREENOUGH, G. B., founds Geological Society and first President, 26;
his strong support of Wernerism, 26, 29

GROVE, R., suggests term 'Continuity,' 23

GUENTHER, Dr, his estimate of number of species of animals, 10

HAECKEL, E., credits Lyell with early conviction of Evolution, 84

HENSLOW, J. S., friendship for and help of Darwin, 97, 98, 99;
opposition to Evolution, 27, 72

Heredity, early recognition of importance, 9

HERSCHEL, J., belief in Evolution, 12, 71;
correspondence with Lyell, 12, 83, 85

HOFF, C. VON, influence of his works on Lyell, 49

HOOKER, J. D., friendship with Lyell's father, 126;
voyage to Antarctic with Ross, 126;
introduction to Darwin, 126;
correspondence with, 127;
assistance to Darwin, 126;
advice to, 129;
on origin of Australian flora, 139;
friendship with Lyell, 79, 126

HUTTON, his _Theory of the Earth_, 17, 18, 19, 20;
rarity of the book, 30;
small influence of, 21;
supposed infidelity and persecution of, 21, 22, 25, 69;
Lyell's mistaken views on, 54;
difference of his theory from Lyell's, 53

HUXLEY, T. H., early views on distinction of Uniformitarianism and
Evolution, 23;
later view of identity, 23, 24;
influence of Darwin on, 24, 127, 144;
on 1st edition of Principles, 67, 80, 81;
argues for Lyell's belief in Evolution, 84;
reviews _Or