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Or Cappagh Brown Is Likewise A Colour Peculiar To Oil It Is A

species of bog-earth or peat, mixed with manganese in various
proportions, and found on the estate of Lord Audley at Cappagh, near
Cork. The specimens in which the peat earth most abounds are of light
weight, friable texture, and dark colour; while those which contain more
of the metal are heavy and paler.

As pigments, the peaty Cappah brown is the most transparent and rich in
colour. A prompt drier in oil, its surface rivels during drying where it
lies thick. The other and metallic sort is a more opaque, a lighter and
warmer brown pigment, which dries rapidly and smoothly in a body or
thick layer. The first may be regarded as a superior Vandyke brown, the
second as a superior umber. The two extreme kinds should be
distinguished as light and deep Cappah browns; the former excellent for
dead colouring and grounds, the latter for glazing and graining. These
pigments work well in oil and varnish; they do not, however, keep their
place while drying in oil by fixing the oil, like the driers of lead,

Next: But Run Under The Names Of Euchrome And Mineral Brown They Have

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