Ventilation and Warming of Buildings, upon the Principles as Designed and Patented by Isaac D. Smead. Isaac D. Smead & Co. 1889. 8" x 11" 154 pages Hardcover with no dust jacket. 13 chromolithographic plates. Many other lithographs averaging approximately one to every other page. Lots of details. A handwritten label, probably contemporary with the book, glued to the spine. Label has some chips. Moderate cover edge wear. Some cover scuffing and spots. Also contemporary previous. owner book plate inside the front cover. I found some page smudges, probably fingerprints. No other previous owner markings. No tears, folds or creases to pages. Binding is tight with no looseness to pages. Not ex-library, not remaindered and not a facsimile reprint. For sale by Jon Wobber, bookseller since 1978. JC16a

Most interesting was how they dealt with dry closets (restrooms) in the schools. I also know they showed the interior of one of their shops, but I do not see any indication of 'dry closets' there. One has to wonder what kind of sweat shop they had. Also of interest are back to back plates - the first one showing a classroom with direct radiation and the second one with warming by pure air, presumably created by Smead.