CHAPTER XV. 



THE WORK OF A LIFE. 



Early Papers — Publications by Scientific Societies — " The Formation 

 of Mould" — "The Cirripedia" — The Wallace Incident — Col- 

 lecting Material for the "Origin of Species" — Success of the 

 Work — Time Spent in Authorship — Religion — Final Work and 

 Death. 



ARWIN'S life-work can 

 only be realised and ap- 

 preciated by an examina- 

 tion of the papers, mon- 

 ographs, and books which 

 he produced between the 

 years 1835 and 1882, and 

 with a full understanding 

 of the years of labour en- 

 tailed in the material and 

 fact-storing process. The 

 voyage of the Beagle was 

 the preparatory time, the season during which he 

 stored his mind with truths bearing upon every pos- 

 sible branch of natural science. He was not simply a 

 biologist ; his attention was not given to life alone, 

 but to nature in its broadest sense, and that his re- 



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