1. Add MS 86675 Reference (shelfmark): Add MS 86675 Title: Sexual Investment Scope & Content: These items are all undated. Equations and workings-out relating to 'stability'. Handwritten notes on the 'Three-Variable Case'. Handwritten notes and workings-out relating to sex ratio investment. Collection Area: Western Manuscripts Languages: English Date Range: [1948-2004] Extent: 3 loose items