B. Silliman, Jr., on the “ Barrel-Quartz” of Nova Scotia, 105 
an appearance not paar a series of small casks laid together 
side by side and end to e 
“The rock covering this remarkable horizontal] vein is ex- 
ceedingly hard; but beneath it, for some little distance, it is 
softer and more fissile. The quartz is itself foliated parallel to 
the lines of tlibsbale ang exhibits a tendency to break in ac- 
cordance with these 
he headings, see pieaans the upper surfaces of the cor- 
rugations, are generally covered by a thin bark-like coating of 
brown oxyd of iron, which is seen frequently to enclose numer- 
ous particles of coarse gold, and the quartz in the vicinity of 
this oxyd of iron is itself often ae auriferous.’ 
The accompanying section, (fig. 1) which I have prepared 
from a sketch of the place as I saw it a riches will, together 
with the following perspective view of the opening, convey a 
clear idea of its ‘peculiar spear 
AM. Jour. Scr.—Szconp Serres, Vou. XX XVIII, No. 112.—Jutr, 1864. 
14 
