('ll* ) 
but that did very little abate the Violence or Bulk of 
the Flame, it ftili continuing to burn upon the Sur- 
face of the Water. They then extinguifhed the Flame 
as before, and opened the Black-Stone Bed near two 
Foot broad, that a greater Quantity of Air might iifue 
forth, and then fired it again it burn’d a full Yard in 
Diameter, and about three Yards high, which foon 
heated the Pit to fo great a Degree, that the Men were 
in Danger of being ftifled, andfo were as expeditious 
as poffible in extinguifhing the Flame, which was 
then too ftrong to be beaten outwith their Hats ; but 
with the Afliftance of a Spout of Water, of four In- 
ches Diameter, let down from a Ciftern above, they 
happily got it extinguished without further Harm. 
After this no Candks were fuffered to come near it, 
’till the Pit was funk down quite through the Bed of 
BlackStone, and the two Foot Coal underneath it, 
and all that part of the Pit, for four or five Foot high, 
was fram’d quite round, and very clofe jointed, fo as 
to repel the damp Air, which neverthelefs, it was- 
apprehended, would break out in fome other adjoining 
part, unlefs it was carried quite off as foon as produced 
out of the Cliffs of the Stone ^ for which End a fmali 
Hollow was left behind the Framing, in order to 
collect all the damp Air into oneSiae of the Pit, where 
a T ube, of abqut two Inches Square, wasclofely fixed, 
one End of it jnto the Hollow behind the Framing, 
and the other carried up into the open Air, four 
Yards above thje Top of the Pit ; and through this 
Tube thefaid damp Air has ever fince difcharged it- 
felf, without being fenfibly diminifhedin its Strength, 
or leffened in its Quantity, fince it was firft opened^ 
which is now two Years, and nine Months ago: It is 
juft 
