Accepting these irreconcilable differences in theory, a remaining route has been proposed, by which Darwin may have got to gain knowledge of Matthew's evolutionary ideas, that is, by knowledge being passed along a network of associates, by word of mouth, or an equally indirect pathway, such as via the influence of an editor. Evidence that such a network existed could be found if there was documentation of anyone having discussed Matthew's ideas on evolution. However, there is no single contemporary record of anyone having even recognised any value in Matthew's concept. Of the three sources to mention the existence of evolutionary content in "On Naval Timber", two were rejections.