This is a report to the legislative assembly of Ontario covering the use of radium, the whole question of cancer clinics, cancer research, and education of the public regarding cancer. The first four sections of the book concern investigations made in Canada, in the United States, in Great Britain and in European countries on these subjects. The second chapter deals with the prevalence of cancer, the third with its treatment, the fourth with research, the fifth with cancer education, and the sixth provides the conclusions. The appendixes deal with mortality from cancer, industrial cancer and the use of radium. As a result of this study, the commission urges the establishment of suitable centers for research and treatment in Ontario.