THE NAUTILUS. 



PUBLICATIONS OF THE WAGNER FREE INSTITUTE 

 OF SCIENCE. 



Transactions. Royal Octavo. 



Vol. I, Heilprin, A. Explorations on the West Coast of Florida and in 

 the Okeechobee Wilderness. 1887, 134 pp., 19 plates (only a few 

 copies on hand). Price, $5.00. 



Vol. II, Leidy, Jos. Some Fossil Human and Mammalian Remains from 

 Florida, Louisiana, and Remarks on the Nature of Organic Spe- 

 cies (f\il,gur perversum). Potts, Edw. W., Report upon some 

 Fresh-water Sponges Collected in Florida. 1889, 56 pp., 10 

 plates. Price, $1.00. 



Vol. Ill, Part i. Dall, W. H. Contributions to the Tertiary Fauna of 

 Florida ; Pulmonate, Opisthobranchiate and Orthodont Gastro- 

 pods. 1890, 200 pp., 12 plates. Price, $2.50. 



Vol. Ill, Part 2, Dall, W. H. Contributions to the Tertiary Fauna of 

 Florida; Streptodont and other Gastropods, concluded. 1892,272 

 pp., 10 plates, with colored geological map of Fla. Price, $3.25. 



Vol. Ill, Part 3, Dall, W. H. Contributions to the Tertiary Fauna of 

 Florida; A New Classification of the Pelecypoda. 1895, 87 pp., 

 Price, 75 cts. 



Vol. Ill, Part 4, Dall, W. H. Contributions to the Tertiary Fauna of 

 Florida ; Pelecypoda (in preparation). 



Vol. IV, Leidy, Jos. and Lucas, F. A. Fossil Vertebrates from the 

 Alachua Clays of Florida, 1896, 61 pp., 19 plates. Price, $1.50. 



Reprint of Conrad's " Medial Tertiary " or Miocene Fossils of the U. S. 

 By W. H. Dall. 1893, 140 pp., 49 plates. Price, $3.50. 



Address, WAGNER FREE INSTITUTE, 



PHILADELPHIA, PA. 



"THEE MUSEUM" 



A new Journal published on the 15th of each month by Walter 

 F. Webb, Albion, N. Y., devoted to NATURAL SCIENCE, will 

 contain, from time to time, fine bargains in shells and interesting 

 articles in this line. SEND IOCTS. FOR COPY AND MY CATALOGUE. 



EXCHANGES (Continued). 



WANTED : North American Land and Marine Shells in ex- 

 change for European Shells, mostly land and fresh water. 



COL. PARRY, 18 Hyde Gardens, Eastbourne, England. 



SHELLS: Good line of Shells of all kinds in quantities wanted 



for mounted Birds, Animals, Reptiles, Crabs, Star-Fish, Corals, 



Sponges, and so on ; write me for catalogue and state what you have 



in shells. T. VAN HYNINGS, Greenwood Park, Des Moiues, Iowa. 



PUGET SOUND Marine Shells to exchange for land, fresh water 



or marine. Send lists. 



YOUNG NATURALISTS ASSOCIATION, Seattle, Washington. 

 OFFERED: Unio Friersonl. Wright, and other Louisiana Shells, 

 for Unionidae. L. S. FRIERSON, Frierson Mill, La. 



