A caution to such as observe days and times to which is added, an address to magistrates, parents, masters of families, &c. By Sophia Hume - Hume, Sophia 1702-1774 (sold by J. Ridley, St. James's-Street; G. Kearsly, in Ludgate-Street; and W. Richardson and L. Urquhart, under the Royal-Exchange, 1766)