079 



FrAZEE, p., Jr. Page. 

 On the Color of the Moon 155 



On the Exfoliation of Rocks near Gettysburg 295-297 



On the Liimonites of York County 364-370 



On the Traps of York County 402-414 



Description of Microscopic Sections of Trap, &c.. with plates 430-431 



Fulton, J. 



On the Somerset County Coal Beds in Pennsylvania 15T-158 



Gabb, W. M. 



On the Indian Tribes and Languages of Costa Rica 483-602 



Genth, F. a. 



Investigation of Iron Ores and Limestones from Ore Banks on Spruce 



Creek, &c 84-99 



Reply to Dr. T. Sterry Hunt 218* 



On American Tellurium and Bismuth Minerals 223-231 



Grote, a. R. 



List of North American Platypterices, &c 256-264 



Hall, C. E. 



On Glacial Deposits at West Philadelphia. 633-634 



HOFFMAK, "W. J. 



On Cremation among the Pah-Ute Digger Indians 297-298, 414-416 



Houston, E. J. 



On a Supposed Allotropic Modification of Phosphorus 108-110 



K6ni&, G. a. 



On an Improvement of the Burette Valve, with cuts 218-223 



Lesley, J. P. 



On the Geology of the Brown Hematite Ore Banks of Spruce Creek, War- 

 rior's Mark Run, &c., with 44 woodcuts and a map 19-83 



Marsh, B. V. 



On the Latent Heat of Expansion in Connection with the Luminosity of 



Meteors 114-129 



OUTERBRIDGE, A. E., Jr. 



On Electrical Spectra of Metals, with wood-cuts 161-1 73 



Price, E. K. 



Obituary Notice of Chief Justice Read 271-183 



Roberts, S. W. 



Obituary Notice of C . B. Trego 356-358 



Sadtler, S. p. 



On a New Occurrence of Tartronic Acid ; and on Glyceric Acid 615-619 



Sellers, C. 



Obituary Notice of J. Harrison 347-355 



Stevenson, J. J. 



On the Alleged Parallelism of Coal Beds 283-295 



Notes on the Geology of West Virginia, with a map 370-402 



On the Geological Relations of the Lignitic Groups of the Far-West 447-475 



Williamson, R. S. 



On Meteorological Observations taken on the Nile, in 1873 ; with tables... 632 



