t of quartz. Photography is rendering incomparable services to all the Its specific gravity is from 3 7 to 4'3. <(«»»■ First Use of Anttaraclte Coal. It is often magnetic, and is fusible without much difficulty sciences. Astronomy, physics, and chemistry are drawing Anthracite coal was discovered… … BEAK fIT IN THE JABDIN DES FLANTES.-FBOK AN INSTANTANEOUS FHOTOOBAFH, Oxide of iron, 36; oxide of man- and in 1833 David Thomas adopted the idea of the hot blast ganese, 0"35; silex, 8575; and alumina, 27-35. The most beautiful and valuable garnets and anthracite together. White & Hazard had,…
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