Trinity College,

May 17, 1858.

YOUR work, I am told, is ready for publication; and very nearly the whole of the previous letter is now in type. I must therefore—especially after the long and unhappy delay to which I have before alluded (p.lxxiv.)—make this Postscript as short as I can. From the first I intended to confine my letter chiefly to the Author's account of the native Africans, and to his past labours and future prospects as a benevolent Missionary—using that word in his own large sense ; so as to include under it every man who is willing personally to devote himself to the improvement of the physical and moral condition of the Natives. The object of this Postscript is to give a synopsis of the physical and scientific information with which this admirable volume abounds. It greatly wants an Index; for it is written inartificially, and most important facts are so scattered through the journal, that when partly forgotten they are not easily referred to. Such an Index need not be long.