TABLE OF CONTENTS. 



PAGE. 



Introduction ........... I 



•SECTION I. 

 Descriptions of new species of Vertebrates, mainly from th« Su'bcarboniferous lime- 

 stones and Coal Measures. By J. S. Newberry and A. H. Worthen 9 



Kemarks on the Occurrence of Fossil Fishes in Illinois. By A. H. Worthen 11 



Supplement to descriptions of Vertebrates—consisting of a description of a new genus 

 and species of Reptiles, from the Coal Measures. By Prof. Edw. D. Cope... 135 



SECTION IL 



Descriptions of Invertebrates from the Carboniferous system. By F. B. Meek and A. H. 

 Worthen 143 



Supplement to the descriptions of Invertebrates — consisting of descriptions of Polyzoa 

 from the Palaeozoic rocks. By H. A Prout, M. D * 412 



SECTION III. 

 Beport on the Fossil Plants of Illinois. By Leo Lescjuereux. . . .. ................ „ . 425 



