Butcher, Samuel Henry; MacPhail, Earle Monteith; Geddes, J. C. Bruce; Lemon, Ethelwyn L. ; Taylor, Andrew Burt; Ross, J. S. ; Nicolson, Catherine A.

1. Butcher, Samuel Henry; MacPhail, Earle Monteith; Geddes, J. C. Bruce; Lemon, Ethelwyn L. ; Taylor, Andrew Burt; Ross, J. S. ; Nicolson, Catherine A.
2. Radial Graph