1. Proceedings of the Board of Health in Manchester(London, n.d., probably 1805), 170–6.
2. XLVII. Experiments on the disinfecting powers of increased temperatures, with a view to the suggestion of a substitute for quarantine
3. “An English chemist, I think it is Mr. WATT, in some of his communications to Dr. BEDDOESon Factitious Airs, was so convinced that the matter of contagion was some form of a gaseous fluid, that he tells his correspondent that he was afraid of stumbling upon the noxious gas that produced Typhus fever; and, under the impression of this dread of being infected, he stopped the farther prosecution of his experiments !. That the substance of contagion is notfire-damp, the salubrity of mines and health of the pitman sufficiently testify.” [W. Henry],An Address to the proprietors and managers of coal mines, London, 1806, 34–6.