154 PIONEERS OF EVOLUTION PART 



in the decade between 1860 and 1870. Quoting 

 Grant Allen's able summary of the advance of the 

 theory of Evolution in his Charles Darwin ; ' One 

 by one the few scientific men who still held out 

 were overborne by the weight of evidence. Geology 

 kept supplying fresh instances of transitional forms ; 

 the progress of research in unexplored countries kept 

 adding to our knowledge of existing intermediate 

 species and varieties. During those ten years, 

 Herbert Spencer published his First Principles, his 

 Biology, and the remodelled form of his Psychology ; 

 Huxley brought out Man's Place in Nature, the 

 Lectures on Comparative Anatomy, and the Introduc- 

 tion to the Classification of Animals ; Wallace pro- 

 duced his Malay Archipelago and his Contributions 

 to the Theory of Natural Selection (Bates, we may 

 here add to Mr. Allen's list, published his paper on 

 Mimicry in 1861, and his Naturalist on the Amazons 

 in 1863) ; and Galton wrote his admirable work on 

 Hereditary Genius, of which his own family is so 

 remarkable an instance. Tyndall and Lewes had 

 long since signified their warm adhesion. At 

 Oxford, Rolleston was bringing up a fresh genera- 

 tion of young biologists in the new faith ; at Cam- 

 bridge, Darwin's old university, a whole school of 

 brilliant and accurate physiologists was beginning to 

 make itself both felt and heard. In the domain of 

 anthropology, Tylor was welcoming the assistance of 

 the new ideas, while Lubbock was engaged on his 

 kindred investigations into the Origin of Civilisation 

 and the Primitive Condition of Man. All these con- 

 verging lines of thought both showed the widespread 

 influence of Darwin's first great work, and also led up 



