![Problem Department]()
Problem DepartmentS. B. Townes, E. P. Starke, M. S. Robertson, Isabella Burdick, Albert Farnell, H. C. D. McClusky, Paul D. Thomas, D. L. MacKay, F. A. Foraker, G. W. Wishard, N. A. Court, W. V. Parker, James F. Callicott, H. T. R. Aude and V. Thebault · National Mathematics Magazine · 1942