PEEFACE 



I HAVE entitled this volume &quot;Danviniana&quot; 

 because the pieces republished in it either treat of 

 the ancient doctrine of Evolution, rehabilitated and 

 placed upon a sound scientific foundation, since 

 and in consequence of, the publication of the 

 &quot; Origin of Species ; &quot; or they attempt to meet the 

 more weighty of the unsparing criticisms with 

 which that great work was visited for several years 

 after its appearance ; or they record the impression 

 left by the personality of Mr. Darwin on one who 

 had the privilege and the happiness of enjoying his 

 friendship for some thirty years ; or they endeavour 

 to sum up his work and indicate its enduring 

 influence on the course of scientific thought. 



Those who take the trouble to read the first 

 two essays, published in 1859 and 18GO, will, I 

 think, do me the justice to admit that my zeal to 

 secure fair play for Mr. Darwin, did not drive me 

 into the position of a mere advocate; and that, 

 while doing justice to the greatness of the argu- 



