"I don't suppose, Matherson," he began, "that you care to run the transit to-day?"

"No," laughed Glen, "I think not to-day."

"Nor the level?"

"No, sir. I'd rather not try it."

"Well, I guess you'd better not. You might get it out of adjustment. Can you read a rod!"

No, Glen could not read a rod.

He proved equally ignorant of the duties of flagman, chainman, and axeman, which Mr. Brackett said was very fortunate, as all these positions were already so capably filled in his party that he should really hate to discharge anybody to make room for the new arrival.

"But," he added, "I have a most important place left, that I believe you will fill capitally. Can you reproduce the letters of the alphabet and the Arabic numerals on a bit of white pine with a piece of red chalk?"

Somewhat bewildered by this banter, Glen answered rather doubtfully that he believed he could.

"Good! Then you shall stay with the wagon to-day, and mark stakes with this bit of 'kiel'" (red chalk).

So Glen's first day's duty as a civil-engineer was to mark stakes with figures to denote the distance measured, or with various letters, such as P. T. (point of tangent), P. C. (point of curve), etc., for the transit party, and B. M. (bench mark), C. (cut), F. (fill), G. (grade), etc., for the levellers.

Mr. Brackett explained the meaning of these signs patiently and clearly to the boy, whose quick wit enabled him readily to comprehend all that was told him. By noon he was furnishing stakes, properly marked, for the various purposes required, as well as though he had been engaged in this business for a month. It was not a very important position, to be sure; but he filled it to the very best of his ability, which is the most that can be expected of any boy.

One of the things by which the new member was most strongly impressed, during this first day's experience, was the great difference between Mr.

Brackett on duty and the same gentleman during his hours of relaxation.

While at work he was grave and dignified, nor did he tolerate any familiarity from those who obeyed his orders. And they did obey them promptly, without question or hesitation. He was no longer "Billy;" but was carefully addressed as "Mr. Brackett" by every member of the party.

It was evident that he not only thoroughly understood his business, but as thoroughly understood the temper of his men. It was clear, also, that they were well aware that he was not a man to allow his authority to be questioned or trifled with. With this mutual understanding the work progressed smoothly and satisfactorily.

All this was a study in character of which Glen was wise enough to learn the lesson; and perhaps it was the most valuable one of that day's schooling. The discipline of a well-drilled engineer corps is very similar to that maintained on board ship; and, while at certain seasons it may be greatly relaxed, it can, and must, be resumed at a moment's notice, if the authority necessary to produce the best results is to be respected.

The same merry, rollicking party rode back into Kansas City that evening that had left it in the morning; and, though Glen was very tired, he had become well enough acquainted with them to enter heartily into the spirit of the fun. Thus, whenever they sang a song he knew, his voice was heard among the loudest.

At the hotel they learned for the first time of the attempt to rob the train Glen had come on, and wondered that he had said nothing of the affair. When they questioned him, he did not know how to talk of it without proclaiming his share in the night's work, and so only said that, as he was asleep when the fight took place, he had seen nothing of it.

Long after Glen had gone to bed that night, Mr. Brackett, the leveller, and the rodman sat up hard at work on the maps and profiles of the lines they had run that day. If Glen had seen this he would have realized what he afterwards learned, that while the work of most men ends with the day, that of an engineer in the field only ends with bedtime, and sometimes a late one at that.

For two days longer Glen worked with this congenial party, gaining valuable knowledge with each hour, and thoroughly enjoying his new life.

On the third day Mr. Hobart came, and it seemed to Glen like seeing one from home to meet him again. After their first greeting, the engineer said,

"Well, my boy, what other wonderful deeds have you been performing since you and the governor ran the locomotive?"

"The governor!" almost gasped Glen. "Was he a governor?"

"Certainly he was, or rather had been. Didn't you know it? He was General Elting, the ex-governor whom you were inquiring about in St.

Louis, and who is now the treasurer of our road. He returned to St.

Louis almost immediately from here, and there I heard the whole story from his own lips. He was greatly disappointed at your disappearance, and much pleased to find out that I knew you; for of course I recognized you from his description. He hopes to meet you again some time, and I have promised to see that you do not indulge in any more mysterious disappearances."

While they talked of that night, and its tragic incidents, Mr. Hobart suddenly interrupted himself with,

"By the way, Glen, I am not going to take charge of this locating-party, after all, and so cannot give you a position in it."

Glen felt his face growing pale as he repeated slowly and incredulously,

"Not going to take charge of it?'

"No; I have been relieved of my command, and am going to engage in another kind of work," replied the engineer, smiling at the boy's startled and distressed expression.

Chapter XI.

ALMOST TOO GOOD TO BE TRUE.

If Glen had detected that smile on Mr. Hobart's face, he would have been spared a few moments of very unhappy reflections. He would have known that his brown-bearded friend could not smile while dashing his high hopes, and that there must be something pleasant back of it all. But as the engineer, who could not resist the temptation to try the effects of a disappointment on the boy's temper, turned away his face at that moment, his words were heard, while the smile was not noticed.

Like a great surging wave, the thought of an ignominious return to Brimfield, and a picture of the mill and the store as he had last seen them, swept over the boy's mind. Then came the more recent picture of the happy out-of-door life he had been leading for the past three days.

How could he give up the one and go back to the other? Of course, if Mr.

Hobart said he could no longer have work with the surveying-party, it must be so. There could be no appeal from that decision. And he had tried so hard to do well whatever had been given him to do, and to make himself useful! It was too bad! But surely there must be other work in this big, bustling, wide-awake West, even for a boy. With this thought his clouded face cleared, and a look of settled resolve overspread it.

"I'm awfully sorry, sir," he said; but the tone was almost cheerful, and Mr. Hobart's face was now the one that expressed surprise. If he had been able to examine Glen's mind, he would have seen that the boy had simply decided not to go back, at least not until the summer was over, but to stay where he was, and attempt to solve the bread-and-b.u.t.ter problem alone.

"My new orders came very unexpectedly," continued the engineer, "and have completely upset my plans. It seems that the company has decided to send me through to the Pacific with General Lyle's exploring expedition."

A lump rose in Glen's throat. General Lyle's expedition! Why, that was the one Binney Gibbs was to accompany. Was all the world going on that wonderful trip except himself? It almost seemed so. "It will be a fine trip, sir," he said, trying to choke down the lump.

"Yes, I suppose it will; but it will also be a hard and dangerous one, such as a great many people would not care to undertake. I don't suppose you would, for instance?" and Mr. Hobart looked quizzically at the boy.

"Wouldn't I! I'd just like to have somebody offer me a chance to go on that expedition, that's all!"

"Very well," replied the engineer, quietly, "I'll offer you the chance, just to see whether you will accept it or not. Will you go with me on this long trip?"

For a few seconds Glen gazed into the brown-bearded face without answering. Was he awake or dreaming? Had the words been spoken? "Do you really mean it, sir?" he almost gasped, at length, "or are you only making fun of me!"

"Mean it? of course I do," was the reply. "I generally mean what I say, and if you really care to explore Kansas and Colorado, New Mexico, Arizona, and Southern California in my company, I shall be most happy to have you do so. I am also authorized to offer you a position, a humble one, to be sure, but one that will pay the same salary that you would have received as a member of the locating-party, in the division I am to command. I don't suppose there will be many chances for you to run locomotives out there; but I have no doubt there will be plenty of swimming to be done, as well as other things in the line of your peculiar abilities. But you have not answered my question yet. Will you accept my offer, or do you wish a few days in which to consider it?"

"Oh, Mr. Hobart!" cried the boy, who was standing up in his excitement.

"It seems almost too good to be true! I can't realize that this splendid chance, that I've been trying so hard not to think about, has really come to me. Why, I'd rather go on that trip than do anything else in the whole world, and if you'll only take me along, in any position, I don't care what, I'll be grateful to you all my life."

"But what do you think your father will say? Do you suppose he will let you go?" inquired the engineer, soberly.

Glen's face became grave again in an instant. "Oh, yes, he's sure to,"

he replied, "but I'll write this very minute, and ask him.

"There won't be time to receive an answer," said Mr. Hobart, "for we must start from here to-morrow; but perhaps this letter will make things all right. You see," he added, "I thought it was just possible that you might care to accept my offer, and so I took the liberty of writing and asking your father if he were willing to have you do so. I also asked him not to say anything about it in Brimfield until after we had started, for fear I should be flooded with applications from other boys, who might imagine I had the power to give them positions. Your father's answer reached me here an hour ago, and with it came this letter for you."

No own father could have written a kinder or more satisfactory letter to a boy than the one Mr. Matherson sent to his adopted son. It readily granted the required permission, and congratulated Glen upon the splendid opportunity thus opened to him. At the same time it told him how they already missed him, and how they hated the thought of not seeing him for a whole year. It closed with the information that Binney Gibbs was making extensive preparations for his departure to the far West, and that the famous expedition, of which he was to be a member, was the all-absorbing topic of conversation in Brimfield.