In July 1949 the MRC's Antibiotics Research Station at Clevedon began to produce culture fluids from the cephalosporium fungus for study by the Sir William Dunn School of Pathology. In early 1952 Abraham's colleague Guy Newton was sent to Clevedon to help speed up the supply of Cephalosporin N. The improved supply enabled Abraham's team to isolate almost pure Cephalosporin N. In 1957, following Glaxo's difficulties in producing sufficient quantities of Cephalosporin C for the Dunn School's requirements, Clevedon workers discovered a mutant strain of the fungus which gave significantly higher yields.

Abraham served on the Scientific Steering Committee to oversee the work of the Antibiotics Research Station, Clevedon.

The majority of the papers relate to the work of the Antibiotics Research Station and its collaboration with the Sir William Dunn School of Pathology.