id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
17740	Smith, Watson	The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association			.txt	text/plain	45683	4130	77	small quantity, about 0·01 gram, of the well-washed cotton fibre, 1 c.c. of water is added, then two to three drops of a 15 to 20 per cent. his work on the wool fibre, says with regard to boiling with water. _Action of Acids on Wool, etc._--Dilute solutions of vitriol (sulphuric acids, but it gives a yellow colour to the fibre. purple colour, and form the products called "cudbear." This dye works used in dyeing, and is a violet-blue colouring matter when neither acid To dye cotton with it, a solution is made of the colour in a boiling In the dyeing of wool and felt with coal-tar colours, it is in many salts (sulphate of soda), in the solution of which coal-tar colours are The colouring matters and dyes, their solutions, and the substances dyed cylinder glass full of picric acid in water, and of a yellow colour.	./cache/17740.txt	./txt/17740.txt