00984cam a22002771 4500 agr51000552 DLC 20260227111016.0 750612s1951 nyua b 000 0 eng agr51000552 (OCoLC)1387721 DLC FM OCoLC DLC premarc SB951 .H837 632 Hough, Walter Seneff, 1893- Spraying, dusting, and fumigating of plants; principles and applications [by] Walter S. Hough [and] A. Freeman Mason. Rev. ed. New York, Macmillan, 1951. ix, 726 p. illus. 22 cm. Rev. and enl. ed. of A. F. Mason's Spraying, dusting, and fumigating of plants, issued 1928. Bibliographical footnotes. "Sources of materials and equipment used in plant protection": p. 699. Pesticides. Insect pests. Mason, Albert Freeman, 1891- joint author. 11395 11395