LIST OF CONTRIBUTORS. 



With reference to the several articles contributed by each. 



For Verbal Communications see General Index. 



PAGE. 



Allen, Harrison, M. D. A prodrome of a Memoir on animal locomotion 60 



Chapman, Henry C, M. D. Notes on the Anatomy of Salpa. Plates XIV, 



XV 334 



Dolley, Chas. S.. M. D. On the histology of Salpa. Plate XIII 298 



Eigenmann, Carl H. Notes on the specific names of certain North American 



Fishes 295 



Fielde. Adele M. Notes on the fresh-water Rhizopods of Svvatow, China.... 122 

 Garrett, Andrew. The terrestrial Mollusca inhabiting the Samoa or Navigator 



Islands 124 



Heilprin, Angelo. The classification of Post-Cretaceous deposits 314 



The Miocene Mollusca of the State of New Jersey 397 



Jordan, David Starr. Description of two new species of Fishes from South 



America 387 



Note on Achirus Lorentzi 389 



Koenig, George A., Ph. D. On Zinc-Mangenese Asbestos 47 



Leidy, Jos. M. D. Notice of some parasitic Worms 20 



McCook, Rev. Henry C. Prolonged life of invertebrates : Notes on the age 



and habits of the American Tarantula 369 



Meehan, Thomas. Contributions to the life-histories of plants 323 



Meyer, Otto. On invertebrates from the Eocene of Mississippi and Alabama. 



Plate III 51 



Oshorn, Dr. Henry F. On the structure and classification of the Mesozoic 



Mammalia 282 



Porter, Thos. C. A list of the Carices of Pennsylvania 68 



Potts, Edward. Contributions towards a synopsis of the American forms of 

 fresh-water Sponges with descriptions of those named by other authors 

 and from ail parts of the world. Plates V, VI, VII, VIII, IX, X, XI, 



XII 158 



Rominger, Dr. C. Description of a new form of Hydrozoa 11 



Description of primordial fossils from Mount Stephens, N. W. Territory 



of Canada. Plate 1 12 



Ryder, John A. On the homologies and early history of the limbs of verte- 

 brates 344 



/ % ^^7 



