The painter and varnisher's guide, or, A treatise, both in theory and practice, on the art of making and applying varnishes, on the different kinds of painting, and on the method of preparing colours both simple and compound ... (1816)
Tingry, P. F. (Pierre François), 1743-1821 · London : Printed for Sherwood, Neely, and Jones · leaf 130
Varnish and varnishing · Pigments
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.