Pigments described by the English chemist, Robert Dossie, the French
artists' colourman, Jean Félix Watin, and the London-based pigment
maker, Constant de Massoul. 18th century European painting saw the
introduction of new pigments to the painters' palettes, from Prussian
Blue to the early synthetics such as Patent Yellow. It was a century
rich in pigments, the authors of the treatises listing over 150 pigments
that could be bought in the shops in London and Paris.