2 CONTENTS.- 



5. Fissure formations, E-gerkingen and Lissieu, younger tlian Wa- 



satch 13 



6. jNIiddle Eocene, Lutetien, apparently parallel with the Wind 



River fauna 14 



7. Middle Eocene, Bartonien, apparently equivalent to the Lower 



Bridger 1 6 



8. Upper Eocene, Ligurien 17 



9. Composite, imperfectly stratified fissure deposits of Middle Eocene 



to Middle Oligocene age 19 



IV. OLIGOCENE OF EUROPE 21 



1. Infra Tongrien, Lower Oligocene 22 



2. Stampien ,. 23 



3. Aquitanien, Upper Oligocene 23 



V. MIOCENE OF EUROPE 24 



1. Langhien or Burdigalien, Lower Miocene 26 



2. Helvetien, Middle Miocene 28 



3. Tortonien, Upper Miocene 29 



VI. PLIOCENE OF EUROPE 30 



1. Messinien, Lower Pliocene 31 



2. Plaisancien, Lower Pliocene 32 



3. Astien, Middle Pliocene 32 



4. Sicilien, Upper Pliocene 32 



VII. PLEISTOCENE OF EUROPE (ADDRESS, 1900)1 34 



1. Preglacial, Lower Pleistocene S"^ 



2. Glacial and Interglacial, Mid- Pleistocene 39 



3. Postglacial, L'pper Pleistocene 44 



PART II.— ADDRESS, 1900. 



FAUNAE RELATIONS OF EUROPE AND AMERICA DURING 

 THE TERTIARY PERIOD AND THEORY OF SUCCESSIVE 

 INVASIONS OF AN AFRICAN FAUNA INTO EUROPE 45 



I. STRATIGRAPHICAL CORRELATION: PRELIMINARY 45 



II. TERTIARY GEOGRAPHICAL DISTRIBUTION 46 



III. THEORY OF SUCCESSIVE INVASIONS OF AN AFRICAN 



FAUNA INTO EUROPE 56 



BIBLIOGRAPHY 59 



' An abstract of the second address was published in Science, April 13, 1900, pp. 

 561-574- 



