sentences:  On returning to England he chose the medical profession, to which his elder brother and grandfather belonged, and studied at Guy’s Hospital, and St Thomas' Hospital.Having obtained the diploma of the Worshipful Society of Apothecaries, he began practice at Pimlico, living with his mother.He became devoted to microscopical research on the brain and nervous system, and applying a new method, and proceeding with extreme care and thoroughness, he established many new facts of structure which had important bearings on the physiology and pathology of the nervous system.