Explanatory note on meteorological observations at Fort St. George, India, by [William Roxburgh] Commencing 'The accompanying Diary was kept in the following manner, at Fort St. George in the East Indies...' [Fort St. George, Chennai, India]. With a description of the instruments and observing times: including a tin cylinder rain gauge, a thermometer by Nairn and Blunt, and a Ramsden barometer. Headed [p.1]: 'This is Mr. Roxburgh's handwriting, J.D.' [Jonas Dryander]. Dryander was appointed as the Royal Society's Librarian in 1785; the accompanying weather observations were presented in January 1786. n.d. [c.1785]