Azo flavine, Bachmeier & Co., 438 West 37th St., N. Y.

Chenoline yellow, Bachmeier & Co., 438 West 37th St., N. Y.

Victoria green, Dicks David Co., 299 Broadway, N. Y.

Acid green, Bachmeier & Co., 438 W. 37th St., N. Y.

Indigotine, Bachmeier & Co., 438 W. 37th St., N. Y.

Oxaline black, H. H. Metz & Co., 122 Hudson St., N. Y.

Alphanol brown B, Natl. Aniline & Chemical Co., Inc.

Magenta, H. H. Metz & Co., 122 Hudson St., N. Y.

ACIDS

Most dyes used in batiking are set with either sulphuric or acetic acid. The above list is all used with the latter, which is preferable, as sulphuric is very dangerous; the slightest trace left in the fabric will, after a while, rot the fibre. Acetic acid does not harm the silk, but with some dyes it is too strong and will change the colour. If this should be the case, either tartaric or oxalic acid can be used. In most cases the acid is added to the bath of the diluted dye rather than to the concentrated solution, the exception being in the case of the Victoria green and the magenta; these have to be dissolved in acetic acid before they are put in the water. Acetic acid is obtainable from any druggist.