The superintendent stepped forward at that juncture, presenting the boys to each member of the party in turn. There were vice-presidents, secretaries and directors--more titles than the boys could remember. To their surprise these big men greeted them as if they were equals. "I hear you already have made a record for yourself, Rush," said Mr. Carrhart. "I don't know about that, sir. I am just beginning to realize that I have a lot to learn." "I hear also that you have had some exciting experiences. You must learn to safeguard yourself, and remember another thing, make your mine safe for your men and you will always get results. You and your friend are in charge of the tracks?" "Yes, sir." "I am pleased to see them in such splendid condition. It is almost like riding on a rock-ballasted railroad, they are so smooth." Bob threw his shoulders back ever so little as he heard this. "My, but those fellows must have eyes all around their heads the way they take things in," muttered Jarvis. "No wonder they are millionaires! They can see what the fellow behind them is doing as well as they can what's going on in front. You can't beat that kind of a game." "I hope he doesn't see that turned rail there over the chute," thought Rush. "I noticed only one bad rail in the entire system, the one there by the chute. I see you have caught that, however." "Well, what do you think of that?" muttered Bob under his breath. "I never heard anything like it." "Yes, sir; but that rail has gone bad within the last twenty-four hours. It was in apparently good condition yesterday. Perhaps I did not examine it closely enough on my last inspection, though." "No; you can't avoid those things now and then. There might have been a defect in the steel, a blow hole or something of the sort. The principal thing is not to let them get away from you. Catch the deterioration in time, before it causes more trouble--that is all we can expect of you. Gentlemen, this is the young man who invented our gravity system. Perhaps you heard the superintendent speak of it just now. And, let me tell you, he will bear watching. One of these days, if you do not keep your eyes open, he is likely to be found sitting in the chair of one of the other of you, either in Duluth, or Pittsburgh, or New York." The gentlemen joined in Mr. Carrhart's laugh, much to Steve's embarrassment, though one would have never known, by looking at him, that he was experiencing any such emotion. "You are doing well, very well; but do not be in too big a hurry and don't get a swelled head. It is fatal to progress." "No, sir. If it does not get smashed, I am sure I shall be able to keep it from swelling," replied Steve, with a faint smile, bringing a laugh from the assembled company. "Where did that accident occur?" asked the president, turning to Mr. Penton. "Right where Mr. Gary is standing now."