_Please do not trouble yourself to answer this_, _and believe me_, _Yours most sincerely_, _S. Butler_. _This elicited a second letter from Darwin_:— _Down_, _Bromley_, _Kent_. _October_ 6. _My dear Sir_,—_I thank you sincerely for your kind and frank letter_, _which has interested me greatly_. _What a singular and varied career you have already run_. _Did you keep any journal or notes in New Zealand_? _For it strikes me that with your rare powers of writing you might make a very interesting work descriptive of a colonist’s life in New Zealand_. _I return your printed letter_, _which you might like to keep_. _It has amused me_, _especially the part in which you criticise yourself_. _To appreciate the letter fully I ought to have read the bishop’s letter_, _which seems to have been very rich_. _You tell me not to answer your note_, _but I could not resist the wish to thank you for your letter_. _With every good wish_, _believe me_, _my dear Sir_, _Yours sincerely_, _Ch. Darwin_. _It is curious that in this correspondence Darwin makes no reference to the fact that he had already had in his possession a copy of Butler’s dialogue and had endeavoured to induce the editor of an English periodical to reprint it_. _It is possible that we have not here the whole of the correspondence which passed between Darwin and Butler at this period_, _and this theory is supported by the fact that Butler seems to take for granted that Darwin knew all about the appearance of the original dialogue on the_ ORIGIN OF SPECIES _in the_ PRESS. _Enough_, _however_, _has been given to explain the correspondence which the publication of the dialogue occasioned_. _I do not know what authority Butler had for supposing that Charles John Abraham_, _Bishop of Wellington_, _was the author of the article entitled_ “_Barrel-Organs_,” _and the_ “_Savoyard_” _of the subsequent controversy_. _However_, _at that time Butler was deep in the __counsels of the_ PRESS, _and he may have received private information on the subject_. _Butler’s own reappearance over the initials A.M. is sufficiently explained in his letter to Darwin_.