An investigation of the coals of Canada with reference to their economic qualities: as conducted at McGill university, Montreal, under the authority of the dominion government...by J.B. Porter...and R.J. Durley...assisted by Théophile C. Denis...Edgar Stansfield...and a staff of special assistants.

Vol. 7 is extra volume supplementing report no. 83.

Bibliography: [v. 7] p. 184-188.

v. 1. [Coal washing and coking tests]-v. 2. [Boiler and gas producer tests]-v. 3 Appendix I. Detailed results of the coal washing trials, by J.B. Porter.-v. 4. Appendix II. Detailed results of the boiler trials, by R.J. Durley.-v. 5 Appendix III. Detailed results of the gas producer trials, by R.J. Durley.-v. 6. Appendix IV. Manufacture and testing of coke, by E. Stansfield and J.B. Porter. Appendix V. Work of the Chemical laboratory, by E. Stansfield.-[v. 7] Weathering of coal, by J. B. Porter...assisted by S.L. Brunton...J.B. De Hart...E.E. Billington...A.E. Cameron...and E. Stansfield.