A dictionary of architecture and building; biographical, historical and descriptive (1901)
Sturgis, Russell, 1836-1909 · New York, Macmillan · leaf 572
o jirovide fordrawing away the accumulations of hot air thatusually form underneath the steep galleries.When the bell or valve in the central dome ispartially closed the pressure of the outgoing airis increased underneath the balcony and gallery,so that the proportion of air forced to go out… … c c< 983 PLATE XXXV
Architecture
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
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