Introductory article by Columbia University chemistry professor Charles E. Pellew, opening a series of eight lessons on dyeing for arts and crafts workers. He argues for modern synthetic (coal tar or aniline) dyes over the natural dyes praised by Ruskin's followers, and reviews ancient dyes such as woad, indigo, madder, cochineal, logwood and Tyrian purple. He gives simple directions for iron (rust) dye and manganese brown (bistre), then traces Perkin's 1856 discovery of mauvein and the synthesis of alizarine. He discusses poor fastness caused by dyers' and manufacturers' choices, and closes with the wider effects of coal tar chemistry on medicine, perfumes, flavorings and pigments.