LIST OF CONTRIBUTORS, 



With reference to the several articles contributed by each. 

 For Verbal Communications see General Index. 



Berthoud, E. L. On the Occurrence of Uranium, Silver, Iron, etc., in 



the Tertiary Formation of Colorado Territory 363 



Binney, W. G. On the Jaw and Lingual Membrane of North Ameri- 

 can Terrestrial Pulmonata 140 



On the Lingual Dentition and Genitalia of Partula and other Pulmo- 

 nata. 244 



Chapman, H. C. Observations on the Structure of the Manatee 452 



Conrad, T. A. Descriptions of new Fossil Shells from Peru 139 



Cope, E. D. On Fossil Remains of Reptilia and Fishes from Illinois. 404 



On a new Genus of Lophobranchiate Fishes 450 



Coues, Elliott. Synopsis of the Geomyidae 130 



A critical review of the North American Saccomyidre ' 272 



Fasti Ornithologise Redivivi No. 1, Bartram's Travels 338 



Gently, Thos. G. Curious Anomaly in history of certain Larvae of 

 Acronycta oblinita, Guenee, and hints on Phylogeuy of Lepi- 



doptera 24 



Grote, A. R. On North American Nocture 418 



Lautenbach, B. F. The Physiological Action of Hemlock and its 



Alkaloid 367 



Lewis, James. Descriptions of new species of American Land and 



Fresh Water Shells 334 



Morrison, H. K. Notes on the Noctuidre, with descriptions of certain 



new species 55 



Notes on the Noctuidse, with descriptions of certain new species, No. 



II 428 



Ogden, J. A. Description of a new species of Bird of Paradise of the 



Genus Ptiloris, in the collection of the Academy 451 



Ridgway, Robt. On Nisus Cooperi (Bonaparte), and N. Gundlachi 



(Lawrence) 78 



On the Buteonine Subgenus Craxirex, Gould 89 



Studies of the American Falconidns Monograph of the Genus 



Micrastur 470 



Stearns, R E. C. Descriptions of new Fossil Shells from the Tertiary 



of California 463 



