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.
The fine pigment sold under this name, principally as a water-colour, is an arbitrary compound, or mixed green, eligible for its uses in landscape, sketching, etc.
 
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