Unpublished graphs and map, regarding a voyage across the Atlantic Ocean by Henry Toynbee Toynbee shares two graphs which track the route of a voyage from England to the Cape [Cape of Good Hope, South Africa]. Followed by [half of] a map of the outward and homeward track of a voyage from the south of England down past South Africa to the Cape of Good Hope. Marked on front as 'Archives Captain Toynbee 1865'. Subject: Navigation Communicated by [Edward] Sabine. 1865