1890 THE COLOUES OP ANIMALS 277 



grinder is now grinding away in his hebdomadal 

 manner. 



Yours ever as twelve years ago at the botanical 

 fete, which alwaj^s makes romantic 



The Philosopher. 



To Professor Poulton. 



Geanies, Boss-shire, N.B. : July 16, 1890. 



j My dear Poulton, — I went to the tennis ground 

 yesterday week, but, as I expected, on account of the 

 rain, found nobody there. 



I now write to ask you if you would have any 

 objection to my borrowing with acknowledgment 

 figures from your book for mine, supposing the pub- 

 lishers also consent. In particular figs. 1, 2, 6, 10, 

 40, and 41. 



Having now read the book, 1 I may say how 

 greatly it has delighted me. The whole is a wonder- 

 ful story, and I congratulate you on the large share 

 which you have had in adding to this chapter of 

 Darwinism. 



There is only one point I am not quite clear about, 

 viz. pp. 213-215. It is doubtless an advantage to 

 the parasites that the caterpillars should warn them 

 off as having been already ' occupied.' But would 

 not this be rather a disadvantage to the caterpillars 

 — i.e. to their species ? For in this way, it seems to 

 me, a greater number of caterpillars would become 

 infested than would be the case in the absence of 



1 The Colours of Animals, by E. B. Poulton, M.A., F.E.S., Inter- 

 national Scientific Series, vol. lxviii. 



