LIST OF CONTRIBUTORS, 



With reference to the several articles contributed by each. 

 For Verbal Communications see General Index. 



Binney, W. G. On the Anatomy and Lingual Dentition of Ariolimax 



and other Pulmonata 33 



Conrad, T. A. Remarks on the Tertiary Clay of the Upper Amazon, 



with descriptions of new Shells 25 



Description of two new Fossil Shells of the Upper Amazon 83 



Cope, E. D. Description of some species of Reptiles obtained by Dr. 

 John F. Bransford, Assistant Surgeon United States Navy, while 



attached to the Nicaragnan Surveying Expedition in 1873 64 



On some Batrachia and Nematognathi brought from the Upper 



Amazon by Prof. Orton 120 



Notes on the Santa Fe Marls, and some of the contained Vertebrate 



Fossils 147 



Cones, E. Synopsis of the Muridae of North America 173 



Gentry, T. G. On Habits of some American Species of Birds 96 



Grote, A. R. New species of North American Noctuidse 197 



Herrick, H. Description of a new species of Helminthophaga 220 



Lewis, J. Description of a new species of Helix 118 



On a new variety of Helix 162 



I S '^ i 1 



