246 Contributions from the — Laboratory. 
a qu 
extraction. are occurs in very numerous localities, but has 
mines of value have yet been found. “Cop per | occurs in very 
numerous localities, but thus far no vein epee — 
quantities of ore is known. Iron, tin, antim vand m ganese 
ores have been found in limited quantities, ae not in ore Po 
of commercial importance. Chromic iron occurs in large quan- 
tities, but also valueless. Coal Occurs in workable “beds at . 
deel importance, but thus far unsuccessfully. Borax is ex- 
tracted with success at one place, and sulphur occurs in some 
places which may hereafter prove of value. . 
The mountain ranges and their valleys are without forests ex- 
cept on the immediate coast, but the most of the hills have 
scattered trees. The higher ridges are very barren and dry, 
the lower hills yield pasturage, ‘and the valleys are often very 
fertile, some of them ; Boge ing the finest climate as well as the 
most fertile soil of the State. 
We will consider the Sierra Nevada in a fatare “— 
Ant. XXXIV.— Contributions from the Sheffield Laboratory of 
— College. No. X.—Mineralogical Notices ; by Guo. J. Brus. 
1. On Cookeite, a new mineral species. 
Assocraren with the tourmaline and lepidolite of Hebron and 
very remarkable pyrognostic characters. Before the blowpipe 
it exfoliates like vermiculite or foliated pyrophyllite, at the same 
