Diamonds and precious stones, a popular account of gems .. . MB-À ENGRAVING OF PRECIOUS STONES. 28/ and keeps always supplied to the edges of thewheel. This work is usually performed by thelapidary, preparatory to the engravers task; indeed,the stone is sometimes set by the jeweller before it. -^ / Fig. 125.—Apparatus for Sawing Hard Stones. is engraved, in which case it is embedded m it is merely shaped and not set, it is fastenedupon a baton with lapidarys cement. The tools and apparatus employed by the en-graver are therefore very simple; but just as the 288 PRECIOUS STONES. sculpto
Diamonds and precious stones, a popular account of gems .. . MB-À ENGRAVING OF PRECIOUS STONES. 28/ and keeps always supplied to the edges of thewheel. This work is usually performed by thelapidary, preparatory to the engravers task; indeed,the stone is sometimes set by the jeweller before it. -^ / Fig. 125.—Apparatus for Sawing Hard Stones. is engraved, in which case it is embedded m it is merely shaped and not set, it is fastenedupon a baton with lapidarys cement. The tools and apparatus employed by the en-graver are therefore very simple; but just as the 288 PRECIOUS STONES. sculptor, besides his chisel and block of marble,must have a certain amount of technical skill, and,above all, the artistic faculty, so is it with the en-graver in hard stones. To execute a high-class work of art on a stoneof one colour is very difficult; but stones of differentcolours, and with the colours variously disposed,are those most commonly employed. Here thedifficulty is enormously increased, for the artist,besides having to attend to the cutting, properly socalled, has also to compose his design, and toobserve that in working it out he takes the fullestadvantage of the different colours of the stone. We shall give one example to show the wonder-ful effects that are sometimes obta
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectgems, booksubjectprec
