^T. 51.] TO CHARLES DARWIN. 479 



fresli ones drawn by Mr. Sprague, but cannot just now 

 lay hands on them. 



Freely point out anything else you want looked at. 

 I have now a very zealous pupil, who will be glad to 

 be intrusted with looking up plants and observing. 

 Ever yours, cordially, ASA GRAY. 



There is some jolly science in the " Saturday Re- 

 view," now and then ; as in December 28, p. 665, 

 where we are informed that icebergs "are formed 

 by the splashing of the waves on the coast of Labra- 

 dor." 



Mill being "the greatest logician in England," I 

 send you an American reprint of a specimen of his 

 logic, which I know you will like. 



We are very sad here at the death of the president 

 of our university, l who had also many warm friends 

 in England. 



March 31. 



Yours of the 15th came this evening. To-morrow 

 I am busy all day in college (where I began my 

 course this year with lectures on Fertilization, devel- 

 oping your views on orchid-insect fertilization, dimor- 

 phism, etc., etc., to an interested class !), so I must 

 drop a line for you into a letter for Boott, for 

 Wednesday's post. 



A friend has just handed me Morell's new book, 

 which, looking at psychology from the physiological 

 side, I see brings up several notions which have been 

 turning over in my mind for some years. He is 

 coming out a good Darwinian, I see, and is quite of 

 my way of thinking about design. You see I am 



1 President C. C. Felton. 



