Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 283
e end of the hood.The air enters the leeward side of the hoodin an indirect way, without dust, dirt ormoisture, such elements being picked upand swept along by the stronger current ofair, while that entering the open end of thehood, being weaker, is freed from all extra-neous matter. The air, thus…
Building materials
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