103 CARBONIFEROUS OF CAPE BRETON—GILPIN. 
that known as the South Head, Ross and Collins. Below this 
comes the Gardner, Tracey, Carrol and other seams to be again 
referred to. 
The Hub seam is not now worked. Altho’ its land area is limit- 
ed, it has an extensive sub-marine development. It was well 
adapted for gas making, and yielded 9,500 cubic feet of 15 candle 
gas per ton. The following analysis will serve to show its char- 
acter.* 
Molatilepmattercmis ono eee ee ool 
Hrxed Carbonic. cake aoe oe ese: Ooee 
Yael sig lee eat etn a octets ee ees banter (oh ate ca OSS 
100.00 
The following table shows the composition of the second 
seain : 
C. aeuke Harbor. Meee Victoria.|Sydney. 
MoISturexaccreste tet one enor .60 80 oT as 1.26 
Vol. Comb. matter, slow coking..| 29.48 27.85 \ 95 4] 26.85 33.84 
a eae Sil fasten ono) eeloleos) se oO40 Gee 32.13. | 35.51 
Fixed Carbon, slow coking.....| 65.56 67.05 159.56 68.15 60.78 
ee <e fast DB) ener 63.46 65.50 linea 62.85 59.11 
DNS OMAP Het oe Dee IEE One bie 4.35 4,30 5.16 4,27 4.11 
Sulphur saeaters: cee et eresee 2.63 2.32 traces laneeeee 1,70 
SDeciile onaviliiiveen eerie eee 1229 MeO + hws $228k iene alll reeset Lol 
The coals referred to above are generally laminated with a 
pitchy lustre, and carry a good deal of mineral charcoal on the 
deposition planes. The primary planes cut those of deposition 
at high angles, but the secondary planes are not so regular. The 
primary planes usually hold films of carbonate of lime and iron, 
which is less frequently present in the secondary planes. 
The gas values vary from 8,200 feet of 8-candle power at the 
Sydney Mines to 10,000 feet of 16.5-candle power at the Block 
House workings. The gas values of the seam apparently in- 
creasing toward the south, while the northern openings produce, 
as at. the Victoria and Sydney mines, an article better adapted 
for steam and domestic purposes. 
* Analyst unknown. 
Unless otherwise specified, the analyses in this paper are by the writer. 
tAnalyst Professor Chapman. 
