Letters from Sophia Maria Byron, 1790-1816, with (fols. 30, 96, 100, 115, 119, 124, 133, 137, 144, 162, 167, 174, 189, 207, 211, 213, 225) drafts of his replies, 1795-1814, and (fols. 252-276) other papers relating to her, 1782-1812, n.d.