CONTENTS. XX111 



PAGE 



Landes Fresh-water limestone of Saucats Position of the limestone of 

 Blaye Eocene strata in the. Bordeaux basin Inland cliff near Dax Strata 

 of Piedmont Superga Valley of the Bormida Molasse of Switzerland 

 Basin of Vienna Styria Hungary Volhynia and Podolia Montpellier 202 



CHAPTER XVI. 



Miocene alluviums Auvergne Mont Perrier Extinct quadrupeds 

 Velay Orleanais Alluviums contemporaneous with Faluns of Touraine 

 Miocene fresh-water formations Upper Val d'Arno Extinct mammalia 

 Coal of Cadibona Miocene volcanic rocks Hungary Transylvania Styria 

 Auvergne Velay . . . . . 217 



CHAPTER XVII. 



Eocene period Fresh-water formations Central France Map Limagne 

 d' Auvergne Sandstone and conglomerate Tertiary Red marl and sandstone 

 like the secondary ' new red sandstone' Green and white foliated marls 

 Indusial limestone Gypseous marls General arrangement and origin of the 

 Travertin Fresh-water formation of the Limagne Puy en Velay Analogy 

 of the strata to those of Auvergne Cantal Resemblance of Aurillac lime- 

 stone and its flints to our upper chalk Proofs of the gradual deposition of 

 marl -Concluding remarks . . 225 



CHAPTER XVIII. 



Marine formations of the Eocene period Strata of the Paris basin how far 

 analogous to the lacustrine deposits of Central France Geographical con- 

 nexion of the Limagne d' Auvergne and the Paris basin -Chain of lakes in 

 the Eocene period Classification of groups in the Paris basin Observations 

 of M. C. Prevost Sketch of the different subdivisions of the Paris basin 

 Contemporaneous marine and fresh-water strata Abundance of Cerithia in 

 the Calcaire grossier Upper marine formation indicates a subsidence 

 Part of the Calcaire grossier destroyed when the upper marine strata origi- 

 nated All the Parisian groups belong to one great epoch Microscopic 

 shells Bones of quadrupeds in gypsum In what manner entombed Num- 

 ber of species All extinct Strata with and without organic remains alter- 

 nating Our knowledge of the physical geography, fauna, and flora of the 

 Eocene period considerable Concluding remarks * . .241 



CHAPTER XIX. 



Volcanic rocks of the Eocene period Auvergne Igneous formations 

 associated with lacustrine strata IJill of Gergovia Eruptions in Central 



