The Dyeing of Textile Fabrics. By J. J. Hammel. (Cassell
and Co.) —Mr. Hummel treats of the plants from which textile fabrics are derived, their manufacture therefrom, their physical properties, as e.g., hygroscopic power, elasticity, and lustre ; the action of acids alkalies, and salts upon the fibres, and their final preparation for the dye-bath. Ho strongly insists on the necessity for more care in the choice of waters, and in their purification from deleterious salts. The English manufacturer does not pay enough attention to this branch of the subject, and thus the most gorgeous dyes ever invented by human ingenuity become useless. A very fall account is given of mordants, and there are numerous good cuts of all the newest and most economical dyeing-machines, mordanting-baths, and hank. washers. A table of colour-tests completes a very useful handbook for the intelligent dyer.
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