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The artists' manual of pigments : showing their composition, conditions of permanency, non-permanency, and adulterations, effects in combination with each other and with vehicles, and the most reliable tests of purity, together with the Science and Art Department's examination questions on painting
The artists' manual of pigments : showing their composition, conditions of permanency, non-permanency, and adulterations, effects in combination with each other and with vehicles, and the most reliable tests of purity, together with the Science and Art Department's examination questions on painting