1842 - qualified as a member of the Royal College of Surgeons of England (MRCS); 1845 - joined the Army Medical Service and became a British Army officer; inventor (of items for yachts); 1848 - first used chlorodyne, known as Dr. J. Collis Browne's Compound in India; 1856 - left the army; partnership with John Thistlewood Davenport, chemist, 33 Great Russell Street, Bloomsbury, London; assigned the sole right to manufacture and market Chlorodyne (1850s-1980s)