00669cam a22002291 4500 gs 20000012 DLC 20260227111324.0 750501s1919 xx 000 0 eng gs 20000012 (OCoLC)1307038 DLC NhD OCoLC DLC premarc TN26 .A35 no. 28 Blizard, John, 1882-1985. The economic use of coal for steam-rising and house heating, by John Blizard. Ottawa, J. de L. Taché, printer, 1919. 21 p. 25 cm. Canada. Mines Branch. Bulletin no. 28 Coal. Steam-heating. 25979 25979