which was nearly filled with the water that had flowed in and
the oil that had been poured in to give some slight resistance at the
top of the cartridge.
Over this, grim and weird-looking in the moonlight, rose the framework
of the derrick, formed of heavy timbers, and apparently solid enough to
resist any pressure that might be brought to bear upon it. Near by were
scattered pieces of machinery, tools and such debris as would naturally
accumulate around a place of the kind.
A large reel, wound with heavy cord, capable of sustaining a hundred
pounds' weight, and with a shallow hook, which would easily become
detached when the pressure was removed, was fastened at one of the
uprights of the derrick, while directly over the well was a block for
the cord to pass through. This was to be used to lower the cartridges
into the well.
After this portion of the work had been completed--and all three of the
moonlighters moved as rapidly as possible, lest Mr. Newcombe should put
in an appearance--the task of filling the shells was begun. The tops of
the long tin tubes were removed, and into these rather frail shells the
glycerine was poured, Bob handling it as if it was no more dangerous
than the petroleum they hoped to find.
As fast as each tube or cartridge was filled it was lowered into the
well by the stout wire bail that was fastened to the top, and just under
the cover was the hammer which would explode the percussion cap when
struck. These cartridges were pointed at the head, and since the point
of the second would rest on the top of the first, and the third on the
second, the blow which exploded the first would naturally be
communicated to the other two.
It was in lowering these cartridges into the well that Bob showed his
first signs of caution in handling the explosive liquid, for the least
jar or concussion, as the tin tubes were being let down into the well,
would have resulted in a premature explosion, which might have had the
most deplorable results.
Ralph, seeing that at this point even Bob was willing to admit that
there might be some danger in the work he was doing, proposed to George
that they move a short distance further away, lest there should be an
accident, and the reply he received was not well calculated to soothe
his nervousness.
"If one of those tubes should explode on the surface here, we should
stand as good a chance of being killed a quarter of a mile away, as
here. So we might just as
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