18, 1891. [ Vol. LXV.-No. 3, ] Weekly. Established 1845 consists approximately of two truncated pyra- DIAMOND CUTTING BY HAND AND MACHINE. mids placed base to base. The line dividing Modern diamond cutting is an art which for the two pyramids is called the girdle. The many generations was… … HAND CUTTING. POLISHING ON HORIZONTAL WHEEL. CLEAVING. treated is mounted in ce- He opened a shop in this ment upon the end of a city, where much work was wooden handle. Upon a done. second handle a sharp- The industry spread edged fragment such as more or less, and is now has been cleaved from an-…
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