sensible lecture on the power of individuals to resist melancholy, and in other popular lectures. Notwithstanding his unwearied industry and an integrity of character which won universal respect, it is understood that Aldis was far from prosperous. His life was spent in working and waiting for success which never came. In 1867 a testimonial of substantial value was presented to him by some well-known men interested in philanthropic and sanitary work. He died suddenly of heart disease on 26 July 1872. Works He wrote: ‘An Introduction to Hospital Practice,’ &c., 8vo, London, 1835 and 1837. ‘On the Poisonous Effects of Coal Gas’ in ‘Med. Chir. Trans.’ xlv. 99 and 107. ‘On the Power of Individuals to prevent Melancholy in themselves,’ 12mo, London, 1860. ‘Lecture on the Sanitary Condition of Large Towns and of Belgravia,’ 12mo, London, 1857. ‘Oratio ex Harveii Instituto,’ 4to, London, 1859. He also drew up numerous reports on the sanitary condition of London, and contributed papers to the medical journals. Notes References 19th-century English medical doctors 1808 births 1872 deaths People educated at St Paul's School, London Alumni of Trinity College, Cambridge Fellows of the Royal College of Physicians Physicians of the Surrey Dispensary