Sheet containing 9 captioned diagrams explicating the correct and incorrect modes of proper ventilation for a heated room as lectured by Leeds, Civil War health inspector and consulting engineer of ventilation and heating for the U.S. Treasury Department. Captions read Erroneous; The Popular Mistake; The General Remedy - Very Bad; Partial Improvement; Correct. When Heating and Ventilating by Warmed Air; Change of Circumstances, Consequently, Incorrect; Incorrect; Correct; Direction Radiation - Exclusively. Diagrams include red and grey shading to represent heat and "foul air"; representations of flues and windows; and human figures. Figures include men, women, and a baby. The figures sit at a table, read in chairs, sleep in bed, sitin a toddler chair on the floor, and iron in the kitchen. Other room furnishings include a nightstand, stove, and fireplace. Also contains two proverbs "Man's own Breath is his greatest enemy" and "Always sleep with Open windows" and a warning about direct radiation from steam pipes as done in most printing offices and editorial rooms as the most "killing arrangement ever made.", Not in Wainwright., Philadelphia on Stone, POSP 50, Historical Society of Pennsylvania: Society Print Collection - Posters & Broadsides - Advertisements - Miscellaneous Folder 1, Variants of six of the diagrams published as two lithographs in Lewis W. Leeds Lectures on ventilation: being a course delivered in the Franklin Institute,.... (NY: John Wiley & Sons, 1868). [LCP Am 1868 Leeds, 17720.O]., Separated into 3 pieces and upper corners missing.
Date
[ca. 1867]
Location
Historical Society of Pennsylvania | Print Department | HSP at LCP HSP Society Print Collection - Posters & Broadsides - Advertisements - Miscellaneous Folder 1
