d^colo^ixal Surbcg of |i;du-|oiiu 



PALJ;ONTOLOGY: 



VOLUME III. 



CONTAINING DESCRIPTIONS AND FIGURES OF THE ORGANIC REMAINS 

 OF THE LOWER HELDERBERG GROUP AKD THE ORISKANY SANDSTONE. 



1855 - 1859. 



BY JAMES HALL 



PART I : TEXT. 



ALBANY: 



PRINTED BY C. VAN BENTHUYSEN. 

 1859. 



