ee 
1879. ] 991 [ Huntington. 
All the outcrops examined by Dr. Jackson were on the western 
slope of the mountain, towards Rocky Branch. When the locality 
was first visited by me there had been little change, except that most 
of the mountain was covered by a growth of trees. After visiting the 
outcrops mentioned by Dr. Jackson, I extended my search eastward, 
and found on the eastern slope of the ridge running towards Jackson 
several places where there were indications of iron, and at one point 
ere was found. 
All the principal outcrops lie in a direct line running north-west 
and south-east, and the distance between the extreme outcrops is 
one hundred and seventy-five rods. 
Since my visit in 1870 there has been considerable prospecting, 
with a view of developing the mine, and some four hundred tons of 
_ ore have been removed; how much of this is manganese remains to 
be determined. When only a few blasts had been made, a rock un- 
like that which appeared on the surface was uncovered, and is that 
we have described as aplite, or Chocorua granite. It is found imme- 
diately with or in close proximity to the iron. This rock here is 
chiefly feldspar of a greenish color, and is generally impregnated 
with galenite; and at the opening west of the main line of outcrops, 
instead of this we find sphalerite. Where this rock has been uncov- 
ered it is from four to six feet in width. In this we first found the 
mineral described above as danalite. It occurs more commonly, 
however, in the small, lenticular masses of quartz in the ore, but it 
is nowhere very abundant. 
An analysis of the ore made for the survey of Dr. Jackson by Mr. 
Williams is as follows: 
Peroxide of Iron . ; : 3 5 : 69.4 
Quartz and Feldspar : : : : : 25.2 
Oxide of Manganese : é : : : 2.7 
Another specimen yielded 
Peroxide and Protoxide of Iron 5 s ‘ 77.25 
Quartz and Feldspar : 2 : : : 21.40 
Alumina : 6 : : . 5 ‘ 15 
Manganese. - ; . " : . 1.20 
and it gave 5.3 per cent. of metallic iron. 
The masses of this ore seem to be in vertical segregations, and 
some of these have been entirely removed by mining, though there 
are yet immense masses that are still exposed. In the Report of the 
