The Underground City | Page 7

Jules Verne
which pressed them as an hydraulic press of incalculable power would have done.
Thus also shells, zoophytes, star-fish, polypi, spirifores, even fish and lizards brought by the water, left on the yet soft coal their exact likeness, "admirably taken off."
Pressure seems to have played a considerable part in the formation of carboniferous strata. In fact, it is to its degree of power that are due the different sorts of coal, of which industry makes use. Thus in the lowest layers of the coal ground appears the anthracite, which, being almost destitute of volatile matter, contains the greatest quantity of carbon. In the higher beds are found, on the contrary, lignite and fossil wood, substances in which the quantity of carbon is infinitely less. Between these two beds, according to the degree of pressure to which they have been subjected, are found veins of graphite and rich or poor coal. It may be asserted that it is for want of sufficient pressure that beds of peaty bog have not been completely changed into coal. So then, the origin of coal mines, in whatever part of the globe they have been discovered, is this: the absorption through the terrestrial crust of the great forests of the geological period; then, the mineralization of the vegetables obtained in the course of time, under the influence of pressure and heat, and under the action of carbonic acid.
Now, at the time when the events related in this story took place, some of the most important mines of the Scottish coal beds had been exhausted by too rapid working. In the region which extends between Edinburgh and Glasgow, for a distance of ten or twelve miles, lay the Aberfoyle colliery, of which the engineer, James Starr, had so long
directed the works. For ten years these mines had been abandoned. No new seams had been discovered, although the soundings had been carried to a depth of fifteen hundred or even of two thousand feet, and when James Starr had retired, it was with the full conviction that even the smallest vein had been completely exhausted.
Under these circumstances, it was plain that the discovery of a new seam of coal would be an important event. Could Simon Ford's communication relate to a fact of this nature? This question James Starr could not cease asking himself. Was he called to make conquest of another corner of these rich treasure fields? Fain would he hope it was so.
The second letter had for an instant checked his speculations on this subject, but now he thought of that letter no longer. Besides, the son of the old overman was there, waiting at the appointed rendezvous. The anonymous letter was therefore worth nothing.
The moment the engineer set foot on the platform at the end of his journey, the young man advanced towards him.
"Are you Harry Ford?" asked the engineer quickly.
"Yes, Mr. Starr."
"I should not have known you, my lad. Of course in ten years you have become a man!"
"I knew you directly, sir," replied the young miner, cap in hand. "You have not changed. You look just as you did when you bade us good-by in the Dochart pit. I haven't forgotten that day."
"Put on your cap, Harry," said the engineer. "It's pouring, and politeness needn't make you catch cold."
"Shall we take shelter anywhere, Mr. Starr?" asked young Ford.
"No, Harry. The weather is settled. It will rain all day, and I am in a hurry. Let us go on."
"I am at your orders," replied Harry.
"Tell me, Harry, is your father well?"
"Very well, Mr. Starr."
"And your mother?"
"She is well, too."
"Was it your father who wrote telling me to come to the Yarrow shaft?"
"No, it was I."
"Then did Simon Ford send me a second letter to contradict the first?" asked the engineer quickly.
"No, Mr. Starr," answered the young miner.
"Very well," said Starr, without speaking of the anonymous letter. Then, continuing, "And can you tell me what you father wants with me?"
"Mr. Starr, my father wishes to tell you himself."
"But you know what it is?"
"I do, sir."
"Well, Harry, I will not ask you more. But let us get on, for I'm anxious to see Simon Ford. By-the-bye, where does he live?"
"In the mine."
"What! In the Dochart pit?"
"Yes, Mr. Starr," replied Harry.
"Really! has your family never left the old mine since the cessation of the works?"
"Not a day, Mr. Starr. You know my father. It is there he was born, it is there he means to die!"
"I can understand that, Harry. I can understand that! His native mine! He did not like to abandon it! And are you happy there?"
"Yes, Mr. Starr," replied the young miner, "for we love one another, and we have but few wants."
"Well, Harry," said the engineer, "lead the way."
And walking rapidly through the streets of Callander, in a few minutes they had left the
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