Incorporated by royal charter in 1662, but owing its origin to the informal meetings about 1645 of a group of scientific men headed by Theodore Haak, a German, Dr. Wilkins, and others; in 1665 the first number of their Philosophical Transactions was published which, with the supplementary publication, Proceedings of the Royal Society , begun in 1800, constitute an invaluable record of the progress of science to the present day; encouragement is given to scientific investigation by awards of medals (Copley, Davy, Darwin, &c.), the equipping of scientific expeditions (e. g . the Challenger ), &c.; weekly meetings are held at Burlington House (quarters since 1857) during the session (November till June); membership comprises some 500 Fellows, including 40 foreigners; receives a parliamentary grant of £4000 a year, and acts in an informal way as scientific adviser to Government.