Entomological Works. 229 



rapid modification ; the great prolificacy and im- 

 mense number of individuals ; the three distinctive 

 states of larva, pupa, and imago, susceptible to 

 modification, as well as other characteristics in in- 

 sects — render them particularly attractive and useful 

 to the evolutionist, and the changed aspect which 

 natural history in general has assumed since the 

 publication of the " Origin of Species " is perhaps 

 more marked in entomology than in any other 

 branch, for its author helped to replace ridicule 

 by reason. During his voyage on the Beagle he col- 

 lected a very large number of interesting species, 

 especially in Coleoptera, and they formed the basis 

 of many memoirs by Walker, Newman, and White, 

 and particularly by G. R. Waterhouse, who named 

 Odontoscclis Diirwmii after him. These memoirs 

 were published either in the Aimals and Magazi?ie 

 of Natural History, and in the Transactions of the 

 Londo7i Entomological Society, or in various entomo- 

 logical periodicals, and I append a list, which, in this 

 connection, it is not necessary to read. 



Scattered through his memorable works, a " Jour- 

 nal of Researches into the Natural History and 

 Geology of the Countries Visited during the Voyage 

 of H. M. S. Beagle round the World " (which is best 

 known by the publisher's title, "A Naturalist's 

 Voyage round the World"), and "The Origin of 

 Species by Means of Natural Selection," are many 

 interesting entomological facts, and in almost every 

 instance they are illumined by his masterly genius 

 and his keen, penetrating mind. These are so nu- 

 merous, so varied, and withal so widely dispersed, 



