u^v- - - , ■ Fis. IT. Shows a relieving arch oversoft spot {(J). … THE VENTILATION AND WARMING OF THE MUNICIPAL HALL, PITTSBURGH, PA. By Lewis TV. Leeds.*rriETAT there should be some artificial -i- force, or power, used to producethe proper movement of the air, in anyoccupied building of considerable size, isnow universally admitted. But, as to the best manner of…
Architecture
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