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New Species of Myliobates from the Eocene of South Caro- 

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Memoirs of the American Academy of Arts and Sciences. 

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Annals and Magazine of Natural History. For January, 1850. 

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Icones Plantarum. By Sir William J. Hooker. Vols. I. -III. 

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Monographia Apum Anglise. By William Kirby. 2 vols. 

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Lectures on Comparative Anatomy and Physiology of the 

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Outlines of Comparative Anatomy. By R. E. Grant. 8vo. 

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Elements of the General and Minute Anatomy of Man and 

 Mammalia. By Fr. Gerber. With Notes, &c. by George Gul- 

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Cyclopsedia of Anatomy and Physiology. By R. B. Todd. 

 8vo. Nos. 1-37. London. Deposited by Republican Insti- 

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Monograph of the Anatidae or Duck Tribe. By T. C. Eyton. 

 4to. London, 1838. Deposited by Republican Institution. 



Icones Avium. By John Gould. Parts 1, 2. Folio. Lon- 

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Descriptions of Two Species of Distoma. By J. Leidy, M. D. 

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Journal of the Academy of Natural Sciences of Philadelphia. 

 New Series. Vol. I. Part. IV. 4to. Philadelphia, 1850. 

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Plates to Magnetic and Meteorological Observations at Girard 

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Illustrations of British Entomology. By J. F. Stephens. 



