THE Garton Prize of £500 and Gold Medal of the British Empire Cancer Campaign, offered this year for an essay on “The Biological Effects and Mode of Action of Radiations upon Malignant and other Cells”, has been awarded to Dr. H. A. Colwell, of Middlesex Hospital, London. As one of the other essays was of high merit, the Grand Council of the Campaign has decided that a second award, of £100, should be made to its authors, Dr. F. G. Spear in association with Dr. R. G. Canti, Mr. L. G. Grimmett, Dr. B. Holmes, Miss S. F. Cox and Dr. W. H. Love. THE HON. OLIVER STANLEY, M.P., Minister of Transport, will unveil a tablet erected at University College, London, by the executive committee of the Trevithick Centenary Commemoration, on April 23. The tablet commemorates Trevithick's locomotive experiments in 1808.