This report of the director of the Imperial Cancer Research Fund, W. H. Gye, reflects again the many activities of the institution, which embrace cancer research in almost all its phases. Although many important confirmations have been made through the experimental work of the past year, no epochal results are found in this report. The main chapters to which contributions have been made during this period by the staff of the Imperial Cancer Research Fund are on carcinogenesis, on viruses, and on the study of the effect of radiation on the physiology of cancer tissues.
In the introduction to the report of the work on carcinogenesis, Gye tries to give this factor its proper place in the conception of cancer etiology, according to his well known ideas. It is again emphasized that the etiology of cancer presents two entirely different and mainly independent aspects: (1) the intrinsic cellular change that