Letter from Howard Walter Florey to F C Courtice, Department of experimental Pathology, John Curtin School of Medical Research, Australian National University, Canberra Apologises for delay in answering letter of 4 January - pleased things are going well in department - understands Morris's work is progressing well - hopes to have soon some good electron microscope pictures of the endothelium of lymphatic capillaries - gives reference to work of Palay and Karlin on chylomicrons. 3 August 1960