This section is from the book "Chromatography; Or, A Treatise On Colours And Pigments, And Of Their Powers In Painting", by George Field. Also available from Amazon: Chromatography, or A Treatise on Colours and Pigments, and of Their Powers in Painting.
Resinous Varnishes are either spirit varnishes, volatile oil varnishes, fixed oil varnishes, or compounds of these, their usual solvents being either spirit of wine or alcohol, oil of turpentine, or linseed oil.
The principal Varnishes hitherto introduced into vehicles, or used in painting, are those of mastic and copal.
 
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