Native trees of Canada. - Morton, Boyd Rutherford, 1885-; Lewis, Richard Garwood, 1885- (Ottawa [Printed by J. O. Patenaude, printer to the King], 1939)
At head of title: Canada. Department of mines and resources. Lands, parks and forests branch. Dominion forest service.
"Revised ed., 1933; reprinted 1939."--p. [ii]
"First published ... in 1917 ... It was written by B. R. Morton ... with notes ... by R. G. Lewis ... [Much of their work] is still preserved in the present bulletin."--Pref.
"List of books for further reference": p. 2.
Keywords: Trees -- Canada