Partial contents: George Christian Hoffman [obituary] -- Fifty years of confederation : a look backward and a look forward / George m. Wrong -- Some origins of the British North America Act, 1867 / William Renwick Riddell -- The pioneers of Jasper Park / D.B. Dowling -- The radioactivity of some Canadian mineral springs / J. Satterly and R.T. Elworthy -- Examination of the Hot Springs at Banff Alberta / R.T. Elworthy