.TAfi PKOCE^^DINGS 



AMERICAN PHILOSOPHICAL SOCIETY, 



HELD AT 



Vol. XX. June to December, 1882. No. 113. 



TABLE OF CONTENTS. 



PAGE. 



Contribution to a monograph of the North American Syrphid^. 



By Dr. S. W. WilUston *"; 



Stated Meeting, June 16 *^'^"' 



Radiant heat an exception to the second law of thermodynamics. 



By^. T. Eddy, Ph.D - ^ 



Revision of the Dermestid^ of the United States. By Horace F. 



Jayne, M.D., {with 4 plates) ^ 



Stated Meeting, July 31 ^^^ 



Stated Meeting, August 18 ■• ^79 



Contributions from the laboratory of the University of Pennsylvania, 



No. XX. By F. A. Genth ^^^ 



Stated Meeting, September 15 405 



Photodynamic notes. No. VI. By Pliny Earle Chase, LL.D 406 



The Classification of Ungulate Mammalia. By E. D. Cope 4d8 



Third Contribution to the history of the Vertebrata of the Permian 



formation of Texas. By E. D. Cope • • • _• 



- Synopsis of the Vertebrata of the Puerco Eocene epoch. By E. D. 



On the Systematic relations of the Carnivora FISSIPEDIA. By 



E. D. Cope 



Stated Meeting, October 6 * 'o 



Stated Meeting, October 20 476 



Note on the Geology of West Virginia. By /. C. Wiite 479 



Stated Meeting, November 3 49b 



Minute of the Bi-Centennial Anniversary of October 28, 1682. By 



the President of the Society • • • • • * 



Obituary Notice of Ralph Waldo Emerson. By Charles G. Ames. . 4J8 



Stated Meeting, November 17 503 



Stated Meeting, December 1 505 



Report of Special Committee on Documents of the Society 506 



Stated Meeting, December 15 50 J 



The horizon of the South Valley Hill rocks in Pennsylvania. By ^^^ 



Persifor Frazer, D.S • * ' " 



Obituary Notice of Edouard Desor. By /. P Lesley. {To be con- ^^^ 



tinued in No. 113.) 



