
Wallace was sent a copy of the 'deep sea deposits' volume of the Challenger report which was edited by the oceanographer--as opposed to the publisher--John Murray.^
George then discovered that Wallace's involvement with the Challenger expedition went deeper than just personal correspondence with the Challenger project members. He was also appointed as a member of the committee for the expedition back on 21 March 1872. Indeed, as Charles Smith has noted, Nature published a note of his membership of the committee on 31 October 1872.