Conditions Governing Access: From the Fonds: This item or collection is available for consultation by researchers in the Map Room at Cambridge University Library. Contact details and Map Room opening hours can be found at https://www.lib.cam.ac.uk/collections/departments/maps/map-department-contact-details. Anyone wishing to use the collection must first acquire a Cambridge University Library reader's ticket, see https://www.lib.cam.ac.uk/using-library/your-library-membership