To Edwin Lankester, Ray Society   26 July [1851]

My dear Sir

I really beg your pardon for troubling you so often; but I must get you kindly to answer me one question by Monday’s evening’s Post.— viz, I have written out in Latin & English short (i.e. 2 or 3 lines) specific character. In my monograph for the Pal. Soc. M^r Bowerbank specially asked me to insert both, as in some cases Latin & in others English Descriptions had been given by other authors.— I intended to insert both in present volume, but have just recollected that this is a point you ought to settle, & which must be settled at once.¹ In actual bulk, it will make, at most, only some 8 or 10 pages difference in whole volume.—

Yours very sincerely | C. Darwin