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BIANCHI, GIOVANNI, v. PLANCUS. 



BIGSBY, JOHN JEREMIAH. 1792-1881. Thesaurus Siluricus. 410. 

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BILLINGS, ELKANAH. 1820-1876. Notes on some of the more 

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BITTNER, A. Ueber das Alter des Tiifferer Mergel und iiber die 

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BLAINVILLE, HENRI MARIE DUCROTAY DE. 1778-1850. Traite 

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Manuel d'Actinologie ou de Zoophytologie. 8vo. Paris, 1834. 



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-, In VIEILLOT, q. v. 



BLAINVILLE, HENRI MARIE DUCROTAY DE, & JACQUES Louis 

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BLAKE, J. F. On the Infralias in Yorkshire. Quart. Journ. Geol. 

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On the Kimmeridge Clay of England. Quart. Journ. Geol. 



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Lower Silurian Foraminifera. Geol. Mag., dec. 2, vol. iii, 



1876, pp. 134, 135. London. 



On Renulina Sorbyana. Monthly Microsc. Journ., vol. xv, 



1876, pp. 262, 263, figure. London. 



BLAKE, WILLIAM PHIPPS. Notice of Remarkable Strata contain- 

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BLANC, HENRI. Un nouveau Foraminifere de la faune profonde 

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