Educated at the United Borough Hospitals when Sir Astley Cooper was Surgeon. He entered the service of the HEIC and practised at Canton and Macao, where he originated the first infirmary for indigent Chinese, and was Superintending Surgeon of the Hospitals for British Seamen. The Infirmary was called after him 'Colledge's Ophthalmic Hospital'. He also founded in 1837 the Medical Missionary Society in China, of which he continued to be President until he died. The office of Surgeon to the Consulate at Canton was abolished in May, 1841. Colledge had filled the post so well that, at the request of the whole community - Portuguese as well as British - Lord Palmerston settled on him an annuity from the Civil List. He was admitted a Fellow of the Royal Society of Edinburgh in 1844, and spent the last thirty-eight years of his life in practice at Cheltenham. He died at Lauriston House, Cheltenham, on October 28th, 1879, survived by his widow, who died a few weeks afterwards. Publications: *A Letter on the Subject of Medical Missionaries*, Macao, China, 1836. *Suggestions for the Formation of a Medical Missionary Society offered to the Consideration of all Christian Nations*, Canton, 1836.