Il] GEOLOGICAL HISTORY. ' 21 



This question, however, must be discussed at greater length 

 in a later chapter. 



Enough has been said to show the many-sided nature of 

 the science of Fossil Plants, and the wide range of the problems 

 which the geologist or botanist may reasonably expect to solve, 

 by means of trustworthy data afforded by scientific palaeo- 

 botanical methods. 



