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13. Crystallizations of Sulphate and Carbonate of Lead ob-

served by M. Hartmann. 14. Geognostic Position of

Platina in America. 15. Jet discovered in Wigtonshire.

16. Geognostical Distribution of Gold in the Uralian

Mountains. 17. Geognostic situation of the Siberian

Platina. 18. Cordierite found in Norway. 19. Magni-
ficent Crystals of Sulphate of Iron, or Green Vitriol.
20. Iserine and Iron-sand in Cheshire. 21. Bismuth
Cobalt-Ore. 22. Selenium in Red Copper-Ore,


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