1. Add MS 15511, f 51 Reference (shelfmark): Add MS 15511, f 51 Title: Sketch of lava Scope & Content: Preparatory pencil sketch of lava formation for Add MS 15511, f 52. Different areas of lava labelled in pencil. Unsigned and undated. Collection Area: Western Manuscripts Languages: English Date Range: 1772 Extent: 1 drawing