173 (Dodge on (Borv 'River Valley Anthracite Coal. 
lower hills immediately to the N. E. and S. W. from this main 
mass embrace only strata of the second fauna, there is the more 
reason to expect other terranes involved in the mountains them- 
selves. 
These objections to the term Taconic being thus obviated wx 
may at least fairly adopt the conclusion arrived at by Mr. 
Walcott after cai'eful field examination and study of the fossils. 
1. After deducting all the errors the upper Taconic remains 
as a distinct formation beneath the horizon of the Potsdam sand- 
stone.' 
3. The term Taconic is applicable to American strata carrying 
the first or primordial fauna, unless Cambrian has a clear pri- 
ority of usage." 
ANTHRACITE COAL IN THE VALLEY OF THE BOW 
RIVER, NORTHWEST TERRITORY OF CANADA. 
BY PROP. JAMES A. DODGE. 
I have rccentlv made an analysis of a sample of coal received 
from "The Canadian Anthracite Company," for Mr. A. Pugh, 
Gen'l Manager, St. Paul, Minn. I have Mr. Pugh's consent 
to make the matter public, and at my request he has given me 
some facts as to the localitv from which this sample of coal was 
obtained. 
The coal has all the appearance of anthracite. The analysis 
made by me was not a complete elementary analysis, but such 
as I have usually made to determine the character of samples 
of coal. 
ANALYSIS. 
Volatile matter 2.64 per cent. 
Fixed carbon 86. 28 " 
Ash 1 1 .07 " 
The pulverized coal was dried at 100° C. before analysis. 
The loss by drying was scarcely appreciable. 
Taking out the ash from the preceding results, and calculating 
to ash-free substance, we have the following figures: 
Volatile matter 2.97 per cent. 
Fixed carbon 97-93 " 
' Bulletin No. 30, U. S. Geol. Sur., p. 70. 
- American Journal of .Science, (3) xxxiii, 153. 
