394 LOWEST RED SANDSTONE. 



whether it would not be prudent to adopt for this 

 sandstone some term analogous to the German 

 name of the red dead-lier, by which it has errone- 

 ously been described, or to the provincial English 

 name of tlje red ragstone, more congenial to our 

 own language. In the mean time, the term old red 

 sandstone has not been used in this work ; partly, 

 for the purpose of avoiding any confusion between 

 the primary and the secondary sandstones, and 

 partly, because that term, if it must be retained, 

 seems most applicable to the former. 



In the observations on the primary sandstone 

 which have preceded, the circumstances, both of 

 mineral structure and composition, and of geo- 

 logical connections, by which that rock is dis- 

 tinguished from the lowest red sandstone of the 

 secondary class, have already been detailed in a 

 great measure. That which remains to be said 

 on the subject, will be found in the following 

 remarks on the position, association, and mineral 

 characters of the latter. The reader will, from 

 those, be enabled to deduce for himself, whatever 

 points of contrast or resemblance the writer has 

 not thought necessary to state in a detailed 

 manner- 



