W. P. Blake on the Gold Region of California and Oregon. 79 
I hens a very beautiful specimen of this character in the form 
of a leaf: one side ‘is beautifully arborescent, and the other is 
studded with perfect octahedrons of various sizes and about 
twenty-five in number, including the smallest. They are geo- 
metrically arranged, all their similar edges being parallel. This 
is believed to be the most remarkable and beautiful specimen 
known. Its weight is 17 pwt. 10 grate Paes two and one 
quarter inches, width, one anda half 3 
One of the foliated specimens in niga ‘alte ction, bears a crystal 
oat the form of a pentagonal dodecahedron with cavernous 
faces. a 
One of the largest specimens of this arborescent and foliated” 
gold that has been procured, was about twelve inches long 
about four broad. A part of the specimen was a plate three 
inches long, covered with triangular marks; the remain der was ar- 
borescent, and the whole appeared to have erows fro 
Another specimen slightly different in its charaete 
bly from another locality in the vicinity, was-ten inches long, 
three broad and about half an inch thick. ft" reighed 31 onnces, 
most beautiful mass o 
rked surface, consisting of a 
like a bundle of broken fern 
and was free from quartz ; forming a 
rich yellow color and a delicately ne 
net-work of fibres. It appes red 
leaves clocoly matted » ogether. 
pa ‘Spectmeéns are evidently from a quartz vein, but al- 
ryt ug have visited the locality, I have not been able tosee the 
ace from which they were taken, or to obtain any reliable in- 
» formation concerning their mode of occurrence and the associate 
minerals. Some of the peor ess ieg were ijncrusted with a 
thick scale of sesquioxyd 0 
The locality is about three hales from Sutter’s mill—the point 
where the gold was first discovered. 
PLatinum.—The occurrence of this metal and its associates with 
the gold of. Port eerie! has been previously noticed in — Jour- 
#5 Series, 
+ Seeds by zl sie, ‘Esqr., of New York, 
