[23] The same year (1871) at a drawing-room meeting held in Dr. Blackwell’s house the National Health Society was formed, which has its offices at 53, Berners Street, London, W.--EDITOR. BILLING AND SONS, LTD., PRINTERS, GUILDFORD. Transcriber’s Notes Page 57: “theories of bateriology” changed to “theories of bacteriology” Page 127: “an acknowleged authority” changed to “an acknowledged authority” Page 178: “herioc efforts” changed to “heroic efforts” Page 208: “thay will save” changed to “they will save”