I enclose a paper which explains the nature of the request I venture to make, namely that you will contribute an essay to the Memorial Volume which it is proposed to publish early next year. The Committee hope that you may see your way to write on the Descent of Man, treating the subject in as wide a manner as you think fit. The article should not exceed 15 or 20 pages in length and it is desirable that the MS should be in my hands by October Ist. in order to allow time for translation and revision of proofs. The book is intended for the general educated reader as also for scientific people; the articles should not therefore be too technical.
I ought to say that I am writing also to Prof. Schwalbe asking him to write on the Descent of Man.
