LIST OF CONTRIBUTORS. 



JVitli 7-eference to the several articles contribtited by each. 



For Verbal (^oinmuuicatious see General Index. 



Baker, Frauk C. Further notes on the embryonic whorls of the 



Muricid* 223 



Brown, Arthur Erwiu. On the true character and relationships 



of Ursus ciunamomeus Aud. and Bach 119 



Chapman, Henry C, M.D. Homologies of the alisphenoid and 



petromastoid bones in vertebrates 32 



Cockerill, T. D. A. A supplementary note to Mr. Johnson's List 



of Jamaican Diptera 419 



Cope, Edw. D. Observations on the geology of adjacent parts of 



Oklahoma and northwest Texas 63 



Third addition to a knowledge of the Batrachiaand Reptilia 



of Costa Rij:-a 194 



On a collection of Batrachia and Reptilia from the Island of 



Hainan 423 



The Batrachia and Reptilia of the Universitj' of Pennsyl- 

 vania West Indian Expedition of 1890 and 1891 (Plates X, 

 XI, XII) 429 



Davis, G. C. Some notes from a study of the Provancher col- 

 lection of Ichneumonidse 184 



Eakins, Thomas. The differential action of certain muscles 



passing more than one joint 172 



Ellis, J. B., and B. M. Everhart. New species of Fungi from 



various localities 322 



Fowke, Gerard and W. K. Moorehead. Recent mound explora- 

 tions in Ohio 308 



Fox, William J. A proposed classification of the Fossorial Hy- 

 men optera of North America 292 



Goldsmith, E. Volcanic products from the Hawaiian Islands 



(Plate VI) 105 



Johnson, Charles W. List of the Diptera of Jamaica with de- 

 scriptions of new species 271 



Jordan, David Starr. Description of a new subspecies of trout 



from McCloud River, California . . . . • 60 



Meehan, Thomas. Contributions to the life histories of plants 



evs 



