Mr Charlesworth encloses to Mr Lyell a copy of a letter addressed to Mr Charlesworth by Professor Owen, as it contains a statement at variance with Mr Charlesworths own account (already in Mr Lyells hands), of some circumstances connected with the publication of the London clay mammiferous remains Mr Lyell will see that Professor Owen advances a fresh charge against Mr Charlesworth ; not, however, of any act committed by Mr Charles- worth, but of one which he intended to commit, had not that intention been frustrated by Mr Charlesworths own communication of it to Pro- fessor Owen.

This new charge implicates also Mr Searles Wood, since Mr Charles- worth could not possibly have claimed the determination of the quadru- manous fragment as his own, without that gentleman conniving at, and becoming a party to the fraud.

Before Mr Charlesworth had seen, or before he had heard of the fossil in question, Professor Owen had compared it and pronounced it to be iden- tical with an existing Macacus, and upon Mr Woods subsequently placing the specimen in Mr Charlesworths hands, Mr Charlesworth com- municated to Mr Wood his doubts as to the correctness of Professor Owens identification, and which doubts have since proved to have been well founded.

From the complexion which the afiair has now assumed, Mr Charles- worth plainly perceives that a determination has in some quarter been formed to affix a stigma of a dishonourable kind to the share which he has had in the publication of the London-clay mammiferous fossils ; and rather than that a notion of this nature should be privately whispered, Mr Charlesworth thinks it better that the whole subject and correspon- dence should be laid before the scientific public.

If Mr Cliarlesworth should think to print certain letters which were written to him by Mr Lyell without any expectation of their being made public, Mr Lyell wishes it to be known that this is done without his sanction or participation.