00921cam a22002771 4500 agr48000409 DLC 20260227111009.0 761005s1948 xx 000 0 eng agr48000409 (OCoLC)2481309 DLC OTU DLC premarc SB353 .R44 635.8 Rettew, Granville Raymond, 1903- Manual of mushroom culture, by G. Raymond Rettew, with the collaboration of Forrest G. Thompson. 4th ed. Toughkenamon, Pa., Mushroom Supply Co. [c1948] 272 p. illus. 21 cm. Earlier editions issued by Chester County Mushroom Laboratories, West Chester, PA. Mushroom culture. Mushrooms Diseases and pests. Thompson, Forrest Grant, 1908- Mushroom Supply Company, Toughkenamon, Pa. 10879 10879