113 



PLATE L I X . 



Rootlets. 



In this Plate and the three following ones we have 

 excellent examples of some of those numerous ambiguous 

 plant-remains which have afforded such a wide field for 

 the ingenuity of describers. Whether they be roots or 

 rootlets, and if so of what plants, or whether they be 

 algoid growths, are questions which, in the fragmentary 

 state of most of the specimens of the kind, and in the 

 absence of any details of structure, cannot be decided. 



In the present case there is little reason to doubt that 

 we have rootlets to deal with. 



The drawing, by Prior, and our figure, are of the 

 natural size. 



The specimen comes from the Bensham coal shale, in 

 Jarrow Colliery. 



i 



