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Scientific American, Vol. 27, No. 19 (November 1872) (1872)

leaf 3

An illustration from Scientific American, Vol. 27, No. 19 (November 1872), 1872, leaf 3
r slabs of terra cotta or earthenware, The first step a person takes is to put on a very old and powdered gall apples, and alum, in rain or river water, until somewhat of an L section, with a recess at the top to receive ragged coat, under the impression that, when he gets his it becomes black.… … and next he holds up the other side while the complete imitations of the natural ebony. For other two are fixed, and one of the first two falls this varnish: 14 oz. of gall apples, 3£ oz. of rasped EARTHENWARE HOTBED FRAMES.—Fig. 1. logwood, If oz. of vitriol, and If oz. of distilled out. By the…

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