☞ An account of the nature and medicinal virtues of the principal mineral waters of Great Britain and Ireland, and those most in repute on the continent : to which are prefixed, directions for impregnanting water with fixed air, in order to communicate to it the peculiar virtues of Pyrmont water, and other mineral waters of a similar nature : extracted from Dr. Priestley's experiments on air : with an append by John Elliot, M.D.