00791cam a22002411 4500 agr21000812 DLC 20260227110942.0 870529s1920 onc 000 0 eng c agr21000812 (OCoLC)15747604 Library, U.S. Dept. of Agriculture TNJ TNJ DLC premarc S599.C3 A5 1920 56 C16 Canada. Commission of Conservation. Conservation of soil fertility and soil fibre. Report of conference held at Winnipeg, Maintoba, July 14, 15 and 16, 1920 ... Ottawa, T. Mulvey, printer, 1920. 89 p. 25 cm. At head of title: Commission of conservation, Canada. Agriculture Canada. Soils. 8745 8745