T. S. Hunt on Lithology. 253 
fill mineral veins, and which doubtless have beet deposited from 
aqueous solutions. While their peculiar arrangement, with the 
Beeraiaance of feldspar and mica gives rise to aggregates which 
and crystalline limestones, when a majority of writers, even to 
the present day, class serpentines, euphotides, and hyperites 
Ogist is accumulating, from year to year, a great mass of eyi- 
ce in favor of the indigenous nature of all these rocks. The 
jetamorphosed in situ,—indigenous rocks, which were altered 
before the Jurassic dolomites were deposited, (Bel. Soc. Geol. 
ni [2], vi, 506-516). In like manner we find <a a hn 
us t iti so © 
