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Tschermak, G. Lehrbuch der Mineralogie. 1 and 2 Lief., 1881. 



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 Tryon, Geo. W., Jr. Manual of conchology. Pts. 17-20. 



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United States Coast and Geodetic Survey, report of the superintendent of the, 



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United States Fish Commission. Bulletin of the. Vol. II, 1882. 



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 United States Geological and Geographical Survey of the Territories, 1878. 



2 vols, and atlas, 1883. Department of the Interior. 



University of Kiel. Fifteen theses, 1881-82. The University. 



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University of Pennsylvania, annual reports of the Provost and Treasurer, 



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Jos. Jeanes. 

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Vogt und Specht. Die Saugetiere in Wort und Bild. Lief. 1-20 Jos. Jeanes. 

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Wachsmuth, Chas. On a new genus and species of Blastoids. Descriptions 



of some new Blastoids from the Hamilton Group. The Author. 



Wachsmuth, Chas., and F. Springer. Remarks on Glyptocrinus and Reteo- 



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Wainwright, Samuel. Scientific sophisms, 1883. Rev. H. C. McCook. 



War Department Library, alphabetical catalogue, 1882. The Department. 



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Watson, Sereno. Contributions to American botany, XI, 1883. The Author. 

 Weismann, Aug. Die Entstellung der Sexualzellen bei den Hydromedusen. 



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Westerlund, Carl Agardh. Monographia Clausiliarum in regione palseoarctica 



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Westwood and Satchell. Biblotheca piscatoria. 1883. I. V. Williamson Fund. 

 Wesleyan University. Eleventh annual report of the curator of the museum. 



1882. The Author. 



