Longitude observations made at various locations in Borneo, by Charles Morgan Elliot Observations made usinng time and the altitude of the Sun's lower limb. The place of observation for earlier readings is not ststed initially, but Sarawak, Malaysia is noted [p.8]. Other locations include the Santor Diamond Mines [p.7 and p.10] and the mouth of the Sepang river [p.10]. With an explanatory note by C M Elliot [p.11] commencing: 'M.S. for morning and A.S. for afternoon sights...'. Headed [p.1 and p.12]: 'Borneo Observations for Longitude &c.' 19 October-19 November 1842