sentences:  James had returned to Oxford by January 1623.In the latter part of 1624 James was employed with John Selden in the examination of the Arundel marbles, and when Selden published his "Marmora Arundeliana" in 1628 he acknowledged in his preface the assistance he had received from James.James had already been introduced to Sir Robert Bruce Cotton; he soon became Cotton's librarian, and the lists of contents prefixed to many manuscripts in the Cottonian collection are in James's handwriting.