Manuscript report, 'East coast of Sutherland', by Henry Charles Otter; with five letters of Otter to the 2nd Duke of Sutherland., 1848-1849, undated., Acc.14226/2. Manuscript entitled, 'Description of the north coast of Scotland' [cover], in which is recorded a survey by Captain Henry Charles Otter of the coastline, landscape and localities; with related letters of Otter to the Duke of Sutherland, and a manuscript report on the east coast of Sutherland., Acc.14226/1-2. National Library of Scotland Archives and Manuscripts Division. https://manuscripts.nls.uk/repositories/2/archival_objects/67693 Accessed May 04, 2024.