Letters to Thomas Percy the younger with drafts of his replies, 1778-1808, and a few earlier family letters collected by him, including (fols. 28, 56-77, 90-5, 116-23, 126-9, 134-7, 140-1, 144-7, 156-7, 170-9, 182-225) correspondence with his uncle, Bishop Percy, 1781-1807.