An investigation of the coals of Canada with reference to their economic qualities
Subtitle: as conducted at McGill University, Montreal, under the authority of the dominion government ...
By: by J.B. Porter and R.J. Durley ...
Contributors: Durley, Richard John, 1868-; Porter, John Bonsall, 1861-
Publisher: Govt. Print. Bureau
Published: 1912
Place of publication: Ottawa
Language: eng
Subjects: Coal
Notes: No. 83, v. 1-6; no. 338, [v. 7]

At head of title: Canada.  Department of Mines.  Mines Branch.

Vol. [7] is extra volume supplementing No. 83.

Bibliography: [vol. 7], p. 184-188.