Australia, 1959-1995:

H.335-H.340: IUPAC International Symposium on the Chemistry of Natural Products, Melbourne, Canberra and Sydney, Australia, 15-25 August 1960. Correspondence regarding arrangements for Abraham to give a paper at the symposium, Abraham's addresses, a reprint of his symposium paper, and correspondence arising from his visit.

H.341-H.342: Miscellaneous correspondence with Australian scientists, 1961-1995.

Belgium, 1969-1993:

H.343-H.346: European Meeting on Medicinal Chemistry, Brussels, 14-17 September 1970. Abraham gave a plenary lecture on 'Some contributions of synthesis and semisynthesis to antibacterial and antiviral chemotherapy'. Correspondence regarding arrangements for meeting, publication of plenary lecture etc.; typescript draft of Abraham's plenary lecture; programme and list of participants.

H.347: Miscellaneous correspondence with Belgian scientists, 1972-1993.

H.348-H.349: Correspondence and papers regarding the George Sarton Chair, University of Ghent, 1988-1991. Abraham was chosen for the George Sarton Chair for the academic year, 1989-1990.