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5535. 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

5539. Asthma, its causes and treatment