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Rymbybel van Jacob Van Maerlant. Met Voorrede, Varianten 

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uitgegeven door J. David, Vr Eerste Deel. Royal 8vo. 



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 A. Quetelet. 



Observations des Phenomenes P^riodiques. [Extr. du Tome 

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 Annuaire de I'Observatoire Royal de Bruxelles, 1858. 25" Annee. 

 1 vol. 16mo. Bruxelles. 1857. 

 State of Massachusetts. 



Ichnology of New England. A Report on tlie Sandstone of the 

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 Government of the Commonwealth of Massachusetts. By Edward 

 Hitchcock, Professor of Amherst College. 1 vol. 4to. Boston. 

 1858. 

 Isaac Lea, LL. D. 



Descriptions of the Embryonic Forms of Thirty-Eight Species of 

 Unionidse. 4to pamph. Philadelphia. 1858. 



Observations on the Genus Unio, together with Descriptions of 

 New Species, their Soft Parts and Embryonic Forms, in the Family 

 Unionida3. 4to pamph. Philadelphia. 



Descriptions of Twenty-Seven new Species of Uniones from 

 Georgia. Remarks on some Unionidae, &c. 8vo pamph. Phil- 

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 A. Osborn. 



Field Notes of Geology. 12rao pamph. New York. ' 1858. 

 Zoologisch-Botanischer Verein zu Wien. 



Verhandlungen. Band VII. Jahr. 1857. 8vo. Wien. 1857. 

 Personen- Orts- und Sach-Register. 1851-55. 1vol. 8vo. 

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Dreiundvierzigster Jahresbericht fiir 1857. Svo pamph. Emden. 

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Kleine Schriften. 8vo pamph. Emden. 1858. 

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Tijdschrift voor Indische Taal-Land-en Volkenkunde uitgegeven 

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 VOL. IV. 34 



