234 AMERICAN JOURNAL 



Memoirs read before the Boston Society of Natural His- 

 tory. Vol. I, Part IV, 1869. From the Society. 

 Bourguignat, ]M. J. R. Mollusques Nouveaux, litigieux ou peu 



connus. 9me and lOme Fasc. Paris, 1868. From 



Geo. W. Tryon, Jr. 

 Brown, A. D. Supplement to A. D. Brown's Catalogue. Dec, 



1868. From the Author. 

 Cox, Dr. J. S. Exchange List of Land and Marine Shells from 



Australia and the adjacent islands. From the Author. 

 Crosse, H. et P. Fischer. Diagnoses Molluscorum Novorum 



Guatemalge et Republicae Mexicanse. From the 



Authors. 

 Currier, A. 0. Kent Scientific Institute, Miscellaneous Publi- 



cations. List of the Shell-bearing Mollusca of Michi- 

 gan, especially of Kent and the adjoining counties. 



Grand Rapids, 1868. From the Author. 

 Frankfort A. M. Nachrichtsblatt der deutschen Malakozoolo- 



gischen Gesellschaft. Nos. 1, 2 and 3. Dec, 1868. 



Frankfort A. M. From the Society. 

 Frauenfeld, Geo.-Ritter von. Zoologische Miscellen. XIV. 



From the Author. 

 Beitrage zur Fauna der Nicobaren. II. From the 



Author. 

 Lea, Isaac, LL.D. Observations on the Genus Unio. Vol. XII. 

 % From the Author. 



Index to Vol. XII of Observations on the Genus Unio. 



Vol. II. From the Author. 

 Descriptions of twelve new species of Unionidas from 



South America, &c Philadelphia, 1868. From the 



Author. 

 London. Proceedings of the Scientfic Meetings of the Zoologi- 

 cal Society of London for the year 1868. Part II. 



Index, 1848-— 1860. From the Society. 

 Malzine, F. de. Essai sur la Faune Malacologique de Belgique. 



Bruxelles, 1869. From the Author. 

 Map of North America, to illustrate the geographical distribution 



of life. From the Boston Society of Natural History. 

 Martens, E. v. Die Preussische Expedition nach Ost-Asien 



Zoologischer Theil. 2er Band. Die Landschnecken. 



Berlin, 1867. From the Author. 

 Uebersicht der Land und SUsswasser Mollusken des Nil- 



Gebietes. From the Author. 

 On Mexican Land Shells. From the Author. 

 Mitchell, J. Catalogue of the Mollusca in the collection of the 



Government Central Museum, Madras. From the 



Author. 



