1. Add MS 4451 Reference (shelfmark): Add MS 4451 Title: Scope & Content: Vol. III (ff. 268). 17 Dec. 1753-6 Aug. 1756 includes: f. 248 Charles Morton, MD; FRS; Principal Librarian of the British Museum 1776: Letters to T. Birch: 1754-1764, bef. 1766. Collection Area: Western Manuscripts Languages: English Date Range: 17 Dec 1753-6 Aug 1756 Extent: 1 item