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GORCEIX, H.: (Letter regarding the explorations in Brazil, especially those 

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GORCEIX, HENRI: Minas Geraes. l'mi des Etats-Unis du Bresil; situation, 

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GRACA, JOAO CORDEIRO DA: Relatoria dos estudos mineralogicos e geo- 

 logicos da Provineia de S. Pedro do Rio Grande do Sul apresentado ao 

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GRACA, JOAO CORDEIRO DA: Breve noticia historica do desenvolviniento da 

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GRAEFF, F. FR.: Mineralogisch-petrographische Untersuchung von Elaolith- 

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GRAEFF, FRANZ FR.: Laavenit in brasilianischen Elaeolithsyenit. Neues 

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GRAHAM, MARIA: Journal of a voyage to Brazil. By Maria Graham. Lon- 

 don, 1824. (Note on fossil bones in the State of Pernambuco eight 

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GRANDIDIER, ALFRED: Les cartes et les appareils de geographie et de cos- 

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GRASHOF, E. E. F.: Landschaftsbilder an der Bay von Rio de Janeiro. 

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GRATEAU, ED.: Decouverte de la houille au Bresil. Annates du Genie Civil. 

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GRAVATA, A.: Mineral resources of Bahia. Quoted from the Diario da 

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GRAVATA, A.: Memoria sobre as minas da Bahia. Boletim da Secretaria de 

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GREVEN, FR.: Manganerze in Brasilien. Stahl und Eisen, 1899, 19, 439. 

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GRODDECK, Dr. VON: Ueber das Vorkommen von Gold- Kupfer- und Bleier- 

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GROSSI, V.: Climatologia, geologia e idrologia medica dello Stato Brasiliano 

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GROSSI, V.: Le miniere del Brasile, Roma, 1895. Abstract: Scottish Geo- 

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GROSSI, DE VINCENZO: Nel paese delle Amazzoni. 12°, 130 pp. Roma, 

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