1. RP 7856 Reference (shelfmark): RP 7856 Title: Scope & Content: MALTHUS, Thomas Robert. 3 Autograph Letters Signed from Thomas Malthus to Nassau William Senior Creation dates: 23 March 1829 - 2 Dec 1830 Collection Area: Western Manuscripts Languages: English Date Range: 27 Jul 2001 Extent: 16 photocopies