Die Chemie des Steinkohlentheers mit besonderer Berücksichtigung der künstlichen organischen Farbstoffe
Gustav Schultz's German technical treatise on coal-tar chemistry and synthetic organic dyestuffs, published by Vieweg in Braunschweig in 1900 for industrial chemists and dye works. The plates combine cutaway and plan views of tar distillation furnaces, retort benches and condensers—engraved in fine line with hatched masonry, key letters and a small workman for scale—alongside typeset benzene-ring structural formulas.
