ws, 
oy and Geology of the White Mounta 
< 
Mineralo 
Fig. 3. 
t litmus paper held over the solution is reddened by the car- 
mois 
ged in drying ; 
DS 
and the color is dischar 
From the external characters this is a true 
bonic acid evolved, 
cific gravity 2.61. 
_ clinkstone, which Gmelin has 
hown (Edin. New Phil. Journal, 
vol. vii, p. 68,) consists of mesotype and feldspar. 
