Ylii CONTENTS. 



CHAPTER VII. 



PAOE 



Plants from the Tertiary to the Modern Period . . . 219 



CHAPTER VIII. 



General Laws of Origin and Migrations of Plants — Relations 

 OF Recent and Fossil Floras 237 



APPENDIX. 



I. CoMPARATiTE View of Paleozoic Floras . . . 273 



II. Heer's Latest Statements on the Greenland Flora . 281 



III. Mineralisation of Fossil Plants ... . 284 



IV. General Works on PAL.a:oBOTANT ... . . 286 



