OF PAPA STOUR. 1 69 



The fragments, which are small, seldom exceed- 

 ing a pea in size, consist of compact felspar, 

 and, in 4 one instance, of sandstone. The cement 

 is a greenish-coloured clay, of various degrees of 

 induration, and, in some instances, it seems to be 

 sandstone. When fresh broken, the stone has a 

 homogeneous appearance \ but where it has been 

 exposed to the influence of the weather, the 

 fragments are very distinct, the cement having 

 been decomposed. 



At Houseavoe, the breccia alternates with the 

 sandstone, and is in thin beds. At Hirdy-gio, it 

 alternates with the amygdaloid. At Ungly- 

 braed-head, there is first a bed of felspar, much 

 mixed with quartz, and presenting a number of 

 diverging radiated points : above this bed, breccia 

 occurs, indistinctly stratified, into which the 

 felspar passes : over this bed of breccia, there is 

 another divided into thin strata, and containing 

 galls of green-clay, and nodules of compact- fel- 

 spar ; and above all, is a bed of amygdaloid, 

 These beds are altered from their original situa- 

 tion, by a slip, which elevates or depresses them 

 six or seven yards. At Little-Peatie's-gio, there 



and seem to have been brought to their present situation, 

 by a more general cause than operated in the formation 

 of the first and third kind. Nor is it applicable to the 

 first kind, since, in it, the fragments are of a different 

 substance from the cement which connects them. 



