A dictionary of architecture and building; biographical, historical and descriptive (1901)
Sturgis, Russell, 1836-1909 · New York, Macmillan · leaf 579
to jjrovide 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… … PLATE XXXV
Architecture
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
