Dyers' materials : an introduction to the examination, evaluation and application of the most important substances used in dyeing, printing, bleaching and finishing (1901)
Heermann, Paul, b. 1868 · London : Scott, Greenwood & Son ; New York : D. Van Nostrand · leaf 171
PYEBS' MATERIALS.— Pa (Scejjajr 25.)
Dyes and dyeing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.