William Back., M.D., was born in Surrey. He commenced his medical education at Guy’s hospital and completed it at Edinburgh, where he graduated doctor of medicine 24th June, 1808 (D.M.I. de Dysenteria). He was admitted a Licentiate of the College of Physicians 22nd December, 1814, and on the 17th March, 1819, was elected physician to Guy’s hospital. He retained that office until 1840, when he retired in great measure from medical practice. Dr. Back died at Clapham park 6th November, 1856, aged seventy-four.