The duty and advantages of encouraging public infirmaries, further considered. A sermon, preached before his Grace Charles Duke of Richmond, Lenox, and Aubigny, President; and the governors of the London Infirmary, in Goodman's-Fields, for the relief of sick and diseased manufacturers, and seamen in merchant-service, &c. at the Parish Church of St. Lawrence-Jewry, on Wednesday, April 25, 1744