Various, Notes and Queries, Number 236, May 6…
“ A vaulted ceiling, without any other room over it, seems to be the most desirable form, as the vitiated air would rise and collect towards its centre, where there could be no counter-current to impede its egress.It is the union of those two objects, the admission of fresh air and the riddance of the vitiated air, skilfully and economically effected, which forms the circle of the science of ventilation. ”
