H.21: Blackwell, C.M. Blackwell was appointed to a two-year postdoctoral post in Abraham's laboratory in 1977. Correspondence concerns appointment only. Includes recommendations. H.22-H.29: Bleaney, R.C. Bleaney was a postdoctoral organic chemist appointed to research in Abraham's laboratory on the synthesis of compounds related to penicillins and cephalosporins. Correspondence and papers regarding career, appointments, and research. Includes references and recommendations....