Analysis of mixed paints, color pigments, and varnishes
A 1908 technical manual by Clifford Dyer Holley and Edwin Fremont Ladd, published in New York by J. Wiley, for chemists and paint analysts testing mixed paints, pigments and varnishes. Its pictures are plain black-and-white line drawings: a paint factory elevation with mills and tanks, and laboratory apparatus with flasks, burettes and gas bottles labelled with letters, offering a designer clear schematic diagrams of industrial plant and lab equipment.
