The effect of the nitrous vapour, in preventing and destroying contagion : ascertained, from a variety of trials, made chiefly by surgeons of His Majesty's Navy, in prisons, hospitals, and on board of ships: with an introduction respecting the nature of the contagion, which gives rise to the jail or hospital fever; and the various methods formerly employed to prevent or destroy this. By James Carmichael Smyth, M.D. F.R.S. Fellow of the Royal College of Physicians, and physician extraordinary to His Majesty. - Smyth, James Carmichael (Printed by Budd and Bartram, for Thomas Dobson, at the stone house, no 41, South Second Street, 1799)