1. The crude mortality rates due to cancer in Scotland, Glasgow and the province of Saskatchewan are presented. 2. The practice of using crude mortality rates as an indication of the incidence of cancer is discussed and condemned. 3. A method of correcting the crude mortality rate for over- and under-diagnosis of cancer is presented. 4. The crude incidence of cancer in Saskatchewan has been calculated using all the sources of information available in that province. 5. The age distribution of cancer in Saskatchewan is presented
