Mushroom Growing Small 320×214 Medium 640×427 Large 1024×684 Download Tiff Original 2400×1603 | (4.3 MB) Description Illustrated is mushroom growing in a portland cement cave. Keywords mushroom, mushroom growing, portland cement cave Galleries Agricultural Buildings Source: L. H. Bailey Standard Cyclopedia of Horticulture (New York, New York: The MacMillan Company, 1917) volume 4, page 2084 Courtesy the private collection of Roy Winkelman
