1. Add MS 89153/20 Reference (shelfmark): Add MS 89153/20 Title: W. Ross Ashby: journal (Volume 20) Scope & Content: Volume 20 (October, 1956 – August, 1957), pp. 5344 – 5693. Collection Area: Western Manuscripts Languages: English Date Range: 1956-1957 Extent: 1 file