UNDEVELOPED COAL FIELDS OF NOVA SCOTIA—GILPIN. 145. 
to be limited on the south by the syenite of Cape Mabou on 
which it rests without the intervention of any of the lower 
groups of thecarboniferous. Its inland extension at other points 
appears to be limited distinctly by the belt of limestcne and 
gypsum which sweeps from the shore north of the mouth of the 
Broad Cove Brook nearly to the Mabou Hills. Here there is an 
interval of metamorphic lower carboniferous rock probably 
valueless to the coal miner. The coal field on land 1s about six 
miles long and about two miles across at its greatest width. 
The sections of the seams as given me during the past few 
years do not agree with those hitherto published, or with one 
measured by me some years ago. 
Mr. W. H. Ross, who has been engaged by the Broad Cove 
Coal Company in opening the seams and in making a shipping 
harbor at MclIsaac’s Pond, an inlet on the centre of this coal tield, 
has kindly agreed to give the Institute a full description of this 
district. I will therefore not attempt to correlate the sections, 
but for the purpose of rounding out these notes will give the 
following sections from Mr. Robb’s report to the Canadian Geo- 
logical Survey :— _—_ In descending order, 
Feet. Inches. 
Dear ING Ses cited eae oosee . 3 0 
af Die sepsean vette Mae es CBS. 5 0 
- Dieestontene o05% ve chen ff 0 
es Bec eette ae tomes s : 4 6 
- era VACA ae gee Ts 3 0 
e OL teas hetahs 3 9 
An idea of the importance of the western shore of Cape. 
Breton as a future coal producer may be formed from Mr. Robb’s 
estimate that these seams contain on land not less than 26,000,- 
000 tons in the land area and 34,000,000 in the sea area to a 
distance of only half a mile from the shore. As there is also, in 
addition to the seams named, a fourteen feet seam of coal, these 
estimates should be largely exceeded, and the sea area of avail- 
able coal held by parties other than those named by him also. 
hold large amounts of coal. 
