754 
Neue Literatur. 
Neue Literatur. 
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Amer. Journ. Sei. XVI. 1903. 12 — 16. 
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upon Silicates. 
Bull. U. S. Geol. Survey. 207. 1903. 57 pag. 
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Berlin 1903. 
Palmer, C. H.: Remarcahle case of hydration. 
Amer. Journ. Sei. XVI. 1903. 45 — 48. 
Speyers, L. : Heat of a change in Connection with changes in die- 
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Amer. Journ. Sei. XVI. 1903. 61- 75. 
Petrographie. Lagerstätten. 
Campbell, R. : Reconnaissance of the borax deposits of Death Valley 
and Mohave Desert. 
Bull. U. S. Geol. Survey. 200. 1902. 22 pag. 1 K. 
Lindgren, W.: Tests for gold and silver in shales front Western 
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Bull, de la soc. beige de geol. Bruxelles 1903. 11 — 37. 
