C.944-C.945 (Smith, Kline & French Laboratories): Smith Kline & French was one of the companies licensed by the NRDC in the early 1960s to work on the production of the Cephalosporin C nucleus. Correspondence etc, mostly regarding research on Cephalosporin C, 1960-1962, 1972-1975.

C.946-C.962 (Squibb Institute of Medical Research): Squibb was one of the companies licensed by the NRDC in the early 1960s to work on the production of the Cephalosporin C nucleus.

C.946-C.949: Correspondence and papers regarding Cephalosporin C and proposed visits and conferences, etc., 1946, 1957-1966. Included is correspondence regarding arrangements for Abraham's participation in the Sixth Interscience Conference on Antimicrobial Agents and Chemotherapy (ICAAC), Philidelphia, USA, October 1966.

C.950-C.951: Correspondence. etc., chiefly regarding a legal case involving E.R. Squibb and Sons Inc, 1971. Included is a draft of an affadavit by Abraham in connection with this case.

C.952-C.960: Lectures by Abraham: the Squibb Lectures for 1972 at Rutgers University, New Jersey, 20, 21 September; and at the annual meeting of the Infectious Diseases Society of America, Atlantic City, 25-27 September 1972.

C.952: Correspondence regarding arrangements for both events and correspondence arising, 1971, 1972.

C.953: 'Biosynthesis of Penicillins and Cephalosporins', first Squibb lecture. In the published version the title of the lecture is 'Aspects of the Biosynthesis of Penicillins and Cephalosporins'. 26pp manuscript draft with revisions and a copy of the revised typescript version with addenda.

C.954-C.957: 'B-lactamases and their Role in Resistance to B-lactam Antibiotics', second Squibb Lecture. 58pp typescript draft, with manuscript revisions, and figures etc., and a copy of proof with corrections.

C.958: Lecture given at the annual meeting of the Infectious Diseases Society of America as a contribution to the topic 'Enzymic Degradation of Antibiotics'. 47pp manuscript draft with revisions entitled 'Enzymic Degradations of the Penicillins and Cephalosporins', with 4 further pages, possibly part of another draft version; typescript tables and data, etc., probably relating to the lecture.

C.959-C.960: Correspondence arising from the lectures, chiefly regarding the publication of the Squibb Lectures, October 1972-March 1974.

C.961-C.962: Correspondence, etc., regarding general matters, 1974-1983.

C.963 (Upjohn Co.): Correspondence in connection with the company's research on antibiotics, 1954, 1959-1968, 1973.