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 

 Guatemalse et Republicae Mexicanae. 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 Unionidae 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 Siisswasser 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. 



