ANALYSES OF SNOQUALMIE IRON ORES.

Kind.Locality. Silica. Metallic Iron. Sulphur.Phosphorus.Authority.
Magnetite. Mt. Logan

{

Summit.
"
"
"
"		1.30
2.73
2.23
1.87
1.67		71.17
68.56
69.40
70.18
67.00		 .00½
.02
.00¾		.04
.03½
.03½
.03
0.02

Dewey (chemist).

}


Reported by Kirke.

}

Average1.96 69.261/5 .019/16 .031/5
Bog Ironstone.
Micaceous.
Hematite.		 Middle
Fork (Guye).

{

9.37
6.03
22.32
3.33
11.77 		45.50
64.50
59.50
67.80
60.90		Traces
0.05
0.05
0.03
0.02 		0.08
——
Trace
Trace
Trace

Reported by Kirke.

}

Magnetite. Denny Mt.

{

No. 1
No. 2
No. 3
No. 4
No. 5
No. 6		2.72
1.30
2.73
4.02
2.23
1.87		69.39
71.17
68.56
67.17
69.40
70.18		0.042
0.005
0.019
0.041
0.008
0.013		0.035
0.039
0.035
0.031
0.035
0.031		Reported by Chas. K. Jenner,
from a Philadelphia chemist.
Average 2.47⅚ 69.31⅙ 0.021⅓ 0.034⅓

By way of comparison, I next introduce a table of analyses, which begins with what Mr. Phineas Barnes, in his report on the steel industry of the United States (1885), gives as a typical steel ore from the best American mines. Proved by analysis to be unsurpassed, if equaled.The second analysis gives the average of fourteen analyses of the best Lake Superior steel ores. The third is a typical steel ore from the Iron Mountain of Missouri. The fourth is the average of all the analyses of the magnetic ores of the Snoqualmie Valley, which name I give to them to distinguish them from similar ores on the east side of the Cascade Mountains, of which I have no analyses: