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allowed a bounty equivalent to the duty upon- English
coals. ‘ There were twelve coal-pits‘ opened.here for- 4
merly,-of which only four continue to-‘be worked. "3 A K
'- The coal found at Bally-castle collieries, particularly in V
the Gob-pit, is not unlike the coal of Campbell-town, . l
and is calledshere blazing coal; but there is another ii. ‘p
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species in the same region called blind’ coal, ‘ by no means
so-'useful. In 1807, the miners working this coal came
V toiaifault, consisting of a bed of limpid-shells, which they
’ i cut through, and recovered the coal. These two species
are never found together, nor are constantly in one place ;
they are ‘separated by a whyndyke, at a‘ place called
Whaley’s Folly. The fossils usuallywattendant upon the l .:.,;,,,:;‘;;
: coal of this district are iron-stone, l)lack'shive1'y slate‘, ' ;‘:,::"‘i‘::'::‘
grey, brown,‘ or yellowish sand-stone, and basaltior whyn-' ‘
stone’;73 all which strata preserve much regularity, and
exhibit their arrangement in the steep cliff‘: they are in-
clined to the horizon in a small angle. These strata are
sometimes cut through by vertical dykes, ‘some’ of which
K I T are impenetrable; and these stops, or interruptions, are‘
called faults. There is one remarkable case of a bed of
trap, lying in a conformable position between stra'ta'0f -
' ' sand, at 'White-nose-crag, near Port-na-crea, -called here
i ' an horizontal dyke: it is about two feet in thickness,
yields a black enamel before the blow-pipe, and acts‘ on
themagnet. Thexcliff in which‘-the'coal-beds“are' depo-
sited, -is traversed ‘by "several dykes : the‘ Carrickmore-‘
dyke, which throws out the measures of the Gob colliery ;
the>Salt-pans dyke, producing a similar effect on the west ;
thef'North-star dyke, which is frequently cut ‘through
without‘ producing a fault to the miner; but the coalon
either side, for a distance of nine feet, is reduced to cindersai
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