Dyers' materials : an introduction to the examination, evaluation and application of the most important substances used in dyeing, printing, bleaching and finishing
Dyers' Materials is a 1901 technical textbook by Paul Heermann, published in London and New York for dyers, printers and textile finishers, covering how to examine and evaluate dyeing substances. Its pictures are microscopic plates of plant fibres such as cotton, linen, hemp and silk, drawn as fine line studies and shown as dark photographic micrographs of starch grains. A designer might take from them the look of scientific botanical line drawing and the pattern of grainy, speckled microscope imagery.
