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 Cox, A. J. The Proximate Analysis of Philippine Coals. This Journal, Sec. A 



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 Brasche, Richard von. Ausfluge in die Vulcangebiete der Umgegend von Ma- 

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 Idem. Aus dem Stiden von Luzon. In Verhandlungen der K.-K. geologischen 



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 Idem. Einige Worte iiber den geologischen Bau von Sud-Luzon. In Mineralog- 



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