00721cam a22002531 4500 agr49000037 DLC 20260227111010.0 870922s1949 pauab b 000 0 eng agr49000037 (OCoLC)16729483 DLC OrPS OCoLC DLC premarc S591 .W42 1949 631.4 Weir, Wilbert Walter, 1882- Soil science, its principles and practice. Rev. ed. Philadelphia, J.B. Lippincott Co. [1949] xi, 615 p. illus., maps. 22 cm. "Suggested references for reading" at end of each chapter. Soils. Agriculture. 10941 10941