Literature on cancer contains numerous articles on the treatment of isolated cases of skin cancer with radium but few statistics on the results of large numbers of cases. In the handbook recently published by the American Society for the Control of Cancer1is found the statement that there are few statistics on the results of treatment of any sort. In observing cases of skin cancer treated with radium, one notes the rapidity with which the average case responds. The impression is gained that treatment by radium is usually successful. In order to see whether or not we were justified in such impressions, it seemed wise to take account of stock by reviewing a group of cases. All patients with skin cancer entering the Huntington Hospital during the years 1917 and 1918 and treated with radium were studied for end-results. There are 265 cases in the series. It must be