Artificial dye-stuffs; their nature, manufacture, and uses
A 1917 technical handbook on synthetic dyes by Albert R. J. Ramsey and H. Claude Weston, published in London by Routledge for chemists and dye-trade workers. Line diagrams trace manufacturing stages in boxed labels joined by arrows, alongside benzene-ring structural formulae and a sectioned view of a fusion vessel, offering ready-made flowchart and molecular schematics.
