Hotbed Small 320×174 Medium 640×349 Large 1024×558 Download Tiff Original 2400×1308 | (3.0 MB) Description A simple hotbed. Keywords agricultural, agriculture, farm, farming Galleries Greenhouses and Cold Frames Source: Emory Adams, The New Knowledge Library (Chicago: The S. A. Mullikin Company, 1919) 343 Courtesy the private collection of Roy Winkelman
