A temperature variation diagram showing the sinusoidal change in temperature at
London, Stockholm, and 78 degrees North Latitude in William Scoresby's, "An
Account of the Arctic Regions", Vol. II. Library Call No. G 742 . S42 1820.
Image ID: expl3115, Voyage To Inner Space - Exploring the Seas With NOAA Collect Photo Date: 1820 Credit: NOAA Central Library Historical Collections