Dear Sir/

I so very much regret being unable to act on your suggestion to republish Prof. Whitney’s article.¹ Nothing would be more pleasant to us than to print anything which you think worth recommendation— But unfortunately not only would it be against the business interests of the Review to give anything already printed but for the Contemporary it would be perhaps more than usually difficult as we have a considerable American circulation—

I wish however that you could yourself be prevailed upon to give in your own name any sort or kind of reply to the Quarterly critic (either directly or indirectly) which might seem well to you.² In the course of any such reply I would venture to suggest that you might quote from Prof. Whitney’s article—to any extent which you might like—

The subject is in itself still freshly full of interest—and I should be so extremely glad if you would practically illustrate your kind & complimentary phrase about the Contemporary by condescending to occupy a place in its pages—

I am dear Sir | Yours very truly | James Knowles

To/ Charles Darwin Esq—