162 
Ft. in. 
10 0 
0 10 
0 
1 
0 
1 
4 
Dark-bhie sbalcs, ^ith. Phyllotlieca, &c. (some laminae coaly), say 
I'laggy brown sandstone witli plant-remains 
Ironstone 
Bluisb-grey shales 
Brown sandstone with ferruginous concretions . . . 
Brown flaggy sandstone, with plant-remains ... ^ 
Grey shales, with l^inch band of good clayband ironstone 
The coal from the seam marked (i) upwards has been destroyed by the igneous 
rock which wanders through it in the form of veins and “pockets,” renders it columnar, 
and ’converts it partly into a kind of stony coke and partly into an earthy graphite. 
The coal beneath is less injured, and the three-inch band marked (a) presents no visible 
sign of having suffered from the heat radiated from the intrusive dolente. 
The band marked («) is jet black and lustrous, with, however, some dull lamin®. 
It took fire easily and burned with a fierce heat, caking, giving out much gas, and 
leavin- but little ash. The coal takes a polish under the knife. The powder has a 
lead-bkck hue. The coal (at least at its weathered outcrop) has a tendency to breaK 
up in right rhombic prisms. It has reticulating films of calcite in the joints. its 
specific gravity is 1’453. 
^ o ■' Analysis. 
Water 
Volatile hydrocarbons ... 
Kxed carbon i [ - 
Ash (white) ) ^ 
1-91 
20-02 
63-60 
14-47 
100-00 
The coke is tender, and swells unequally along the laminae. _ _ 
The seam marked (6) is rather slaty at the bottom, with alternate dull and shining 
lamina) This portion burned with difficulty and left a good deal of ash. The upper 
portion of the seam took fire easily, crepitated loudly at first (probably from moisture), 
fitted a good deal of gas, and then fell away leaving little ash except from some shaiy 
laminm. The purer layers of coal tend to split up in rectangular prisms, but are 
otherwise very firm. The coal takes a fine brownish -black polish. Its powder is lamp- 
black. yppgj. part of the seam appears to be more homogeneous than the lower- 
The laminated structure is equally distinct in both, but the lower appears to be more 
broken up by shaiy partings. 
Analysis or Tor or Seam. 
Water 
Volatile hydrocarbons 
Fixed carbon 
Ash 
2-44 
15-72 
57-40 
24-44 
Specific gravity, 1-42. 
100-00 
Analysis or Bottom or Seam. 
Water 
Volatile hydrocarbons 
Fixed carbon 
Ash 
... 2-50 
... 13-09 
... 57-14 
... 27-27 
100-00 
Specific gravity, 1-513. 
The bed marked (e) will hardly burn at all, and is in fact mere stone. 
