224 



THE GEOLOGIST. 



are admirably represented in the wood- cuts by which they 

 are accompanied^, of which we present examples, without 

 any lengthened notice of their pecuHarities. 



Sphenopteris Crenata. Neuropteris Loshii, with a magnified leaflet. 



Odontopteris Minor. Precopteris Adiantoides, with a magnified leaflet. 



To each of these the characters are appended, and thus 

 by the joint assistance of a well executed figure, and a 

 systematic description, the student will have no difficulty 

 in pursuing his future studies. 



Passing to the subject of Palaeontology, we find an in- 



