CONTENTS OF VOLUME I. 



BY S. T. BAKKKTT. 



PAGE. 



Descriptions of- New Species of Fossils from the Upper Silurian Rocks 

 of Port Jervis, N. Y. ; with Notes on the Occurrence of the 

 Coralline Limestone at that Locality, (Art. IX) 121 



BY W. G. BINNEY. 



On the Jaw and Lingual Dentition of certain Costa Rica Land Shells 



collected by the late Dr. William M. Gabb, (Art. XXIII) 257 



On certain North American Species of Zonites, etc. (Art. XXVIII). . . 355 



BY H. CARKINGTON BOLTON. 



Application of Organic xicids to the Examination of Minerals, (Art. I) 1 

 Behavior of Natural Sulphides with Iodine and other Reagents, 



(Art, XV) 153 



BY M. G. COOKE. 



The Fungi of Texas, (Art, XVIII) 17' 



