CONTENTS OF PART II. 



Page. 



PART II.— Paleontology 93 



Introduction : 



The Elements of Palaeontology, Fossils, and Fossilization 97 



Solution and the formation of molds and casts 100 



Mechanical deformati ons 100 



Carbonization 101 



Infiltration 101 



Replacement 102 



Palaeontology in its relation to geology. 103 



Palccontology in its relation to biology 105 



CHAPTER I. — How to collect and PRErARE fossil invertebrates 107 



Collecting fossils 107 



Outfit 107 



Fieldwork 108 



Preparing fossils for study HI 



Outfit Ill 



Laboratory work 113 



Table D. — Classification of the animal kingdom IIS 



CHAPTER 11.-^ Descriptions of the genera and species of inver- 

 tebrates found in the Marcellus, Hamilton, Genesee and 

 Naples beds of Eighteen Mile Creek and the Lake-Shore 



Region of Erie County, New York 119 



Class Hydrozoa 119 



Class Anthozoa 120 



Class Crinoidea 139 



Class Annelida 148 



Tubes 148 



Conodonts 150 



Plates 156 



Class Bryozoa ... 158 



Class Brachiopoda 179 



Brachiopoda Inarticulata 181 



Brachiopoda Articulata , 188 



Class Pelecypoda 239 



Class Gastropoda 270 



Class Pteropoda 281 



Class Cephalopoda 285 



Nautiloidea 280 



Ammonoidea 295 



Class Crustacea 303 



Order Ostracoda 303 



Order Trilobita- 311 



