1. Add MS 89143/1/1/25 Reference (shelfmark): Add MS 89143/1/1/25 Title: Letters to Lord Castlereagh Scope & Content: Copy letters (5 May, 1807 – 17 June, 1809) from G. Canning to Lord Castlereagh. Collection Area: Western Manuscripts Languages: English Date Range: 5 May 1807-17 Jun 1809 Extent: 1 folder