State Museum of Natural History. 4B 



Political Science Quarterly : 



Vol. II, Nos. 1, 2, 3 ; Vol. I, Supplement. 

 Neues Jahrbuch fur Mineralogie, Greologie and Palaeontologie : 



I Band, Heft 2, 3. 



II Band, Heft, 1, 2, 3. 



V Beilage Band, Heft 1 2. 

 Fresh Water Algae of the United States. By Francis Wolle. Text 

 and Plates. 



