C.287-C.292: Correspondence between Abraham and C.W. Hale of the Antibiotics Research Station, regarding research on cephalosporin, October 1949-December 1952. Included are copies of typescript reports by scientists at the Antibiotics Research Station and the Sir William Dunn School of Pathology. 6 folders.

C.293-C.307: Correspondence, mostly carbon copies of letters from Abraham to B.K. Kelly and G.W. Hale at Clevedon; included also is correspondence between Abraham, the National Research Development Corporation and Glaxo Laboratories Ltd. 1949-1961. 15 folders.