i860.] CAMBRIDGE PHILOSOPHICAL SOCIETY. 307 



Pigeon Manuscript ; but, from one cause or another, I get on 

 very slowly. . . . 



This morning I got a letter from the Academy of Natural 

 Sciences of Philadelphia, announcing that I am elected a cor- 

 respondent ... It shows that some Naturalists there do not 

 think me such a scientific profligate as many think me here. 



My dear Lyell, yours gratefully, 



C. Darwin. 



P.S. What a grand fact about the extinct stag's horn 

 worked by man ! 



C. Darwin to J. D. Hooker. 



Down [May 13th, i860]. 

 My DEAR HOOKER, I return Henslow, which I was very 

 ;glad to see. How good of him to defend me.* I will write 

 and thank him. 



As you said you w r ere curious to hear Thomson's f opinion, 

 I send his kind letter. He is evidently a strong opposer to us. 



Yours affectionately, 



C. Darwin. 



C. Darwin to J. D. Hooker. 



Down [May 15th, i860]. 



How paltry it is in such men as X., Y. and Co. 



not reading your essay. It is incredibly paltry. % They 

 may all attack me to their hearts' content. I am got case- 

 hardened. As for the old fogies in Cambridge, it really signi- 

 fies nothing. I look at their attacks as a proof that our work 

 is worth the doing. It makes me resolve to buckle on my 



* Against Sedgwick's attack son's ' Flora Indica,' 1855. 

 before the Cambridge Philosophical % These remarks do not apply to 



Society. Dr. Harvey, who was, however, in 



t Dr. Thomas Thomson, the a somewhat similar position. See 



Indian botanist. He was a col- p. 313. 

 laborateur in Hooker and Thom- 



X 2 



