28 



Proceedings of thc American Association for the 

 advancement of Science. Vol. XXIX. part. I. II. 

 1880. Salem 1881. 



Bulletin of the Essex Institute. Vol. XL 1879. Vol. 

 XII. 1880. Vol. XIII. 1881. Salem, Mass. 1879—82. 8. 



Visitors Guide to Salem. Salem, Mass. 1880. 8. 



The Flora of Essex County, Mass. by John Robinson. Salem, 

 Essex Institute 1880. 8. 



Proceedings of the Academy of natural Sciences of Phila- 

 delphia. 1880. Part I - III. 1881. Part I — III. 

 Philadelphia 1880—82. 8. 



Proceedings of the American philosophical Society. 

 Vol. XVI. No. 97. 99. Vol. XVIII. No. 106. Vol. XIX. 

 No. 107-109. Philadelphia 1880. 81. 8. 



List of the members of the American philosophical 

 Society. March 15. 1880. 8. 



Anniversary memoirs of the Boston Society of natural 

 history. Boston 1880. 4. 



Transactions of the Connecticut Academy of arts and 

 Sciences. Vol. IV. Part 2. Vol. V. Part 2. New Haven 

 1882. 8. 



Contributions to the Archaeology of Missouri, by the archaeol. 

 sect. of the St. Louis Academy of Science. Part I. 

 Salem, Mass. 1880. 4. 



C. Durch Allkauf. 



Fortgesetzt wurden: 



Bronn, Classen und Ordnungen des Thierreichs. 



Archiv für Naturgeschichte, herausgegeben von Dr. 

 F. H. Troschel. 



Neues Jahrbuch für Mineralogie, Geologie u. Palä- 

 ontologie von E. W. Benecke, C. Klein u. H. Rosenbusch. 



