CONTENTS 



Chap. Page. 



I. — Introduction . i 



II. — The Present Flora of Britain . . 10 



III. — Means of Dispersal 20 



IV.— Changes in Geography and Climate . 33 



V.— Deposits Containing Fossil Plants. . 48 



VI.— Former Distribution of British Plants. 97 



Appendix.— Table Showing the Range in Time 



of the British Flora 171 



