400 Index. 



Volcanoes, their action in geological evolution, ;t:;-!i4; phenomena at Krakatoa, 



<»4. 

 Voltaire, on organic remains in rocks, 91. 

 Von Hartmann, Prof. Edouard, on human evolution, 172. 

 Voyage of the Beagle, 28. 



Wake, C. Staniland, on evolution of morality, 264. 



Wakeman, Thaddeus P>., on theological evolution, 251 ; on social evolution, 388. 



Wallace, Alfred Russel, his relations with Darwin and discovery of natural 

 selection, 30-31 ; his difference from Darwin, 34 ; on island-life, 301-302 (com- 

 pare p. 15G). 



Ward, Prof. Lester F., his Dynamic Sociology, 382-383. 



Wedgwood, Josiah, 27. 



Weismann's theory of descent, 16G. 



Wilson, Prof., on the universality of evolution, 30G; on degeneration, 308 



Wood, Rev. J. G., on flint in vegetal structures, 121. 



Wright, Rev. Merle St. Croix, on evolution and religion, 338. 



Youmans, Prof. Edwakd L., on Herbert Spencer's education, 4; his in- 

 fluence in introducing Spencer in America, 7 ; on the Spencer fund, 7 nott ; 

 his intimacy with Spencer in America, 9 ; his death, 12 ; his articles on Spen- 

 cer in the Popular Science Monthly, 18 note ; his remarks on Spencer's at- 

 tempted reconciliation of science arid religion, 332. 



Youmans, Miss Eliza A., her judgment of Spencer's psychology, 7 ; Mr. Thomp- 

 son's indebtedness to her, 18 note. 



Youmans, Dr. William J., 19. 



