204 



Bulletin de la Societe de Geographie. Troisieme Serie. Tome XIV. 

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Annates des Mines. Quatrieme Serie. Tome XVIII. 6 livraison 

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Recherches siir le Porphyre Rouge Antique, et sur le Syenite Rose 

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Proceedings of tlie Royal Institution of Great Britain, March 28 to 

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Monthly Notices of the Roya] Astronomical Society. Vol. XI. No. 5. 

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Quarterly Journal of the Chemical Society. Vol. IV. No. 13. April 

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Quarterly Journal of the Geological Society. Vol. VII. No. 25. 

 Feb. I, 1851. London. 8vo. — From the Society. 



Proceedings of the Royal Irish Academy. Vol. IV. Dublin, 1850. 

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Transactions of the Royal Geological Society of Cornwall. Vol. VI. 

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Royal Geological Society of Cornwall. Thirty-fourth, Thirty-fifth, 

 Thirty-sixth, and Thirty-seventh Annual Reports of the Council, 

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 Society. Penzance, 1847, 8, 9, 50. 8vo. — From the same. 



Proceedings of the American Association for the Advancement of 

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The African Repository. Vol. XXVII. No. 5. May, 1851. Wash- 

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Journal of the Franklin Institute. Third Series. Vol. XXI. Nos. 5 

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Cartas para servir de introduction a la Historia Primitiva de las Na- 

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Production of Vital Force: A Discourse delivered before the Massa- 

 chusetts Medical Society, at their Annual Meeting, May 30, 1849. 



