id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
36936	Leeds, Lewis W.	Lectures on Ventilation Being a Course Delivered in the Franklin Institute of Philadelphia			.txt	text/plain	24946	1084	70	open windows--Fire not objectionable--A small room ventilated is better than a large room not ventilated--Illustration--Fresh certificates do not state "killed by foul air"--Open fire-places large crowded rooms--Circulating warmed air best--Erroneous views is much more wholesome than a large air-tight room freezing cold. the air would be a little nearer pure at night than in the day-time. Heat is the great moving power of air. does not occur to the air of a room heated by the open fire. The air in a room heated by an open fire can scarcely become stagnant, open_ to carry off the cold, heavy foul air from the floor--a stove Thus a large flow of pure fresh warm air might be forces all the cold air out, warming and ventilating the whole room. ventilation, illustrating clearly the known quantity of pure, fresh air the fresh air directly into the room, and at times, too, when it is even	./cache/36936.txt	./txt/36936.txt