102 
r, is not ye : 
rocks or minerals. I observed a good instance last year, a 
pany with the Rev. Dr. Woolls, in the gorge of the Grose od 
about a mile, as I should guess, from the junction of petit 
wood Creek, or two miles below that of the Burralow. est 
intercalated with and passes into the sandstones, and - oo 
much the appearance of a reconstruction of the materials & : 
older and more massive conglomerate, such as is f pies ; 
into and exposed by the river. Perhaps this is the fact, ir ‘ 
ae blowing sand during the whole period 
ee travel, and yet to remain rough 
coming perfectly rounded and polished. It may, 
ise of these fragments is to be sought much nearer 
If this be not the case, I cannot but 
character is adverse to the pneumatic theory. There 
enee of character that I can see between these two § 
