6.95 
excellent house-coal, but in many places it is so mixed up 
with dirt as to be worthless. The only specimens that I have 
had the means of testing were from a day hole near the 
outcrop, and were therefore not a fair sample; they were 
very tender, highly bituminous, very fierce and swift in the 
fire, and made a large quantity of light white ash. 
In the two hundred and fifty yards of measures above the 
Wathwood Coal, there is little to interest anyone but the 
geologist pure and simple. A few coals, thin, irregular, and 
of the poorest quality are found, but the main features are 
several thick and massive sandstone rocks. Even these, 
however, have their use, for they can be traced with more 
or less certainty by the ridges which their outcrops form, 
and when these are laid down on a map, it will be possible 
to determine within moderate limits the depth at which 
the Barnsley Coal will be found, when the present bassett 
workings are exhausted, and deep winnings undertaken 
over the eastern portion of the coal-field ; and in some cases 
approximations may be made to the positions of the lines of 
the larger faults, before the latter have been proved in 
actual workings. 
The most striking of these sandstones is the Woolley 
Edge Rock, a coarse, thickly-bedded gritstone, sometimes 
thirty or forty yards thick, which ranges with a fine escarp- 
ment from New Miller Dam, along Woolley Edge, east of 
Barnsley, along Darley Dale, as far as Hemingfield : here 
the bed begins to be split up into several divisions, and in 
place of the striking cliff, which has hitherto served us so 
admirably as a guide in tracing the rock, we have a few 
faint ridges, step by step dying away altogether; the rock 
soon afterwards tails out, and its place is taken by shale. 
The four rocks above this, the Oaks Rock and the Bottom, 
Middle, and Upper Chevet Rocks, have a common character : 
they are light brown or buff in colour, finely grained, thickly 
