"
"The latest scientific data do not bear out the idea that the earth is
so hot," answered Raffles Haw. "It is certain that the increased
temperature in coal mines depends upon the barometric pressure.
There are gases in the earth which may be ignited, and there are
combustible materials as we see in the volcanoes; but if we came across
anything of the sort in our borings, we could turn a river or
two down the shaft, and get the better of it in that fashion."
"It would be rather awkward if the other end of your shaft came out
under the Pacific Ocean," said Robert, choking down his inclination to
laugh.
"I have had estimates and calculations from the first living engineers--
French, English, and American. The point of exit of the tunnel could be
calculated to the yard. That portfolio in the corner is full of
sections, plans, and diagrams. I have agents employed in buying up
land, and if all goes well, we may get to work in the autumn. That is
one device which may produce results. Another is canal-cutting."
"Ah, there you would compete with the railways."
"You don't quite understand. I intend to cut canals through every neck
of land where such a convenience would facilitate commerce. Such a
scheme, when unaccompanied by any toll upon vessels, would, I think, be
a very judicious way of helping the human race.
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