LIST OF CONTRIBUTORS, 



With reference to the several Articles contributed by each. 



Abbott, C. C. Description of a Collection of Jasper " Lance-heads " found 

 near Trenton, New Jersey ; and Remarks on the Locality, with 

 reference to Indian Antiquities 278 



Agassiz, A. Synopsis of the Echinoids collected by Dr. W. Stimpson on 

 the North Pacific Exploring Expedition, under the command of 

 Captains Ringgold and Rodgers 352 



Ashmead, Saml. See Durand. 



Brevoort, J. C. Enumeration of the Fish described and figured by 

 Parra, scientifically named by Felipe Poey. Translated and edited 

 by J. C. Brevoort 174 



Cassin, J. Notes on the Picidze, with descriptions of new and little 



known species 194, 322 



Cope, E. D. On Trachycephalus, Scaphiopus and other American 



Batrachia 43 



Descriptions of new American Squamata, in the Museum of the Smith- 



' sonian Institution 100 



Coues, Elliot. Additional Remarks on the North American JEgiothi 40 



On the Lestris Richardsonii of Swainson ; with a critical Review of the 



Subfamily of Lestridinse 121 



Durand, E. Enumeration of the Arctic Plants collected by Dr. I. I. 

 Hayes in his exploration of Smith's Sound, between parallels 

 78th and 82d, during the months of July, Aug., and beginning of 

 Sept. 1861. By E. Durand, Thomas P. James, and Samuel Ashmead. 93 



Ennis, J. Additions to the catalogue of Stars which have changed their 



Colors 96, 159 



% 



Gill, Theo. Catalogue of the North American Scisenoid Fishes 82 



