Mushroom.
—A dull yellow shade, which may be obtained by adding one part of orange and two of yellow to ten parts of black.
Middle Stone.
—Mix as described under “Stone,” but use more umber and ochre.
Naples Yellow.
—This yellow is not now much used, chrome yellow having to a large extent taken its place. It may be imitated by tinting zinc white with cadmium yellow and a very little yellow ochre.
Naples Yellow.
—This is obtained by mixing orange with twice as much yellow and three times as much white. It is also the name given to an artist’s colour.
Ochre Yellow.
—Mix orange and yellow in about equal proportions with a rather larger quantity of black.