o 

 O 



a. 





FOSSIL FLORA OF THE STAFFORDSHIRE COAL FIELDS. 

 Vertical Section — continuetl. 



319 



The Fossil Plants can be most conveniently considered in connection with their geolo- 

 gical positions. 



I. Those from the Upper Coal Measures, comprising tlic strata passed through from 

 the surface to a depth of 451 yards. 



