Royal Institution frozen, he was not allowed to practise as a doctor, and Humphry Davy was appointed as his assistant, so he resigned. Humphry Davy was an even greater success, as was his assistant and successor Michael Faraday. Davy's immediate successor was William Thomas Brande. Thus the Institution has had an instrumental role in the advancement of science since its founding. Notable scientists who have worked there include Sir Humphry Davy (who discovered sodium and potassium), Michael Faraday, James Dewar, Sir William Henry Bragg and Sir William Lawrence Bragg (who jointly won the Nobel prize for their work on x-ray diffraction), Max
African Institution Report of the Committee of the African Institution, presented at the Freemasons' Tavern, London 24th of March, 1813: Report of the Directors of the African Institution, presented 23rd of March, 1814: Ninth Report of the Directors of the African Institution, presented London 12th of April, 1815: A "Special Report" was produced in 1815 to rebut an attack on the Institution by Robert Thorpe. The seventh annual report had noted a deterioration of conditions in Sierra Leone, yet had made upbeat comments about all involved. Concerned parties—William Allen and John Clarkson—expressed disquiet, while Thorpe made unmeasured criticisms, pamphleteering and targeting Zachary