id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
13640	Various	Scientific American Supplement, No. 821, September 26, 1891			.txt	text/plain	44943	2558	71	interest in tar paper roofs, the method of manufacturing an The good qualities of tar paper roofs being recognized by of nailing the tar paper direct upon the roof boarding were corrected; mentioned the invention of the double tar paper roof, and the wood In order to ascertain to what degree tar paper roofs would resist next started within a building covered with a tar paper roof; the a little hydrochloric acid, diluted with distilled water and heated. distilled a good standard tar for roofing paper recovered, besides additions, by the use of which a high grade of roofing paper can rain water running from an old paper roof, especially after dry From observation of the general nature of the solutions of Ghatti gums, of Ghattis giving solutions of higher viscosity than gum arabics, obtain complete solution of a Ghatti gum is to add half the weight in	./cache/13640.txt	./txt/13640.txt