VI 11 CONTENTS. 



Page. 



Descriptions of three New Species of American Birds, with a Note on Eugenes 



spectabilis 1 37 



Descriptions of New Species of Birds of the Genera Icterus and Synallaxis 184 



Descriptions of Six Supposed New Species of American Birds 395 



BY ALBERT LEEDS. 



Spectroscopic Exam ination of Silicates 324 



BT PROFESSOR BENJAMIX X. MARTIN. 



Essay upon a Necessary Limitation of tlie Doctrine of the Unity of the General 



Forces of Nature 211 



BT EDWARD S. MORSE. 



On the Tarsus and Carpus of Birds. (With Plates IV and V.) 141 



■ BY A. S. PACKARD, JR. 



Catalogue of the Pyralida3 of California, Mith descriptions of new Californian 



Pteropliorida; 257 



Notes on some Pyralidre from New England, with Kemarks on the Labrador 



Species of this Family , 2G7 



BY FELIPE POEY. 



Genrep des Poissons de la Faune de Cuba, appartenant a la Famille Percid:e, 



avec une Note d' introduction par J. Carson Brevoort. (Plate I.) 27 



Monographic des Poissons de Cuba compris dans la sous-famille des Sparini. 



(With Plates VI and VII.) 170 



BY TEMPLE PRIME. 



Notes on Specimens of Corhiculadaj in the Cabinet of the Jardin des Plantes at 



Paris, and on the authorship of the Eucyciopedie Methodique 188 



BY ROBERT RIDGWAY. 



Catalogue of the Birds ascertained to occur in Illinois 304 



BY JXO. J. STEVEXSON. 



The Upper Coal Measures West of the Alleghany IMonntains. (Plate XII.) 223 



Notes on the Coals of the Kanawha Valley, West Virginia 271 



BY AVILLIAM STIMPSOX. 



Notes on North American Crustacea, in the Museum of the Smithsonian Institu- 

 tion. (Xo. III.) 92 



BY TIIEO. A. TELLKAMPF. 



Notes on the Ascidea Maiihattensis, DeKay, and on the Mammaria Manhattensis. 



(Plate III.) 83 



