“This is one of my new cartridges for use in actual service. It seems to you, no doubt, very small, very inadequate to the needs of actual warfare. You would both naturally say that it is too small for long range, too small for executive work; that it is altogether unfit for the purposes for which bullets are made.” A smile played about his lips. Then, continuing, as he held up one of these bullets: “This is an ordinary thirty-calibre bullet, but the grand principle is in the explosive used with it. Heretofore it has required about fifty grains of powder to send such a missile on an effective mission. Now, fifty grains of powder require quite a good-sized space; it requires a case to hold it, and all this lengthens out the cartridge. If a magazine gun is used, but few such cartridges can be placed in the magazine. I have overcome all this by using a new explosive of my own manufacture. I take the ordinary bullet and simply fill the hollow end with one grain of my new compound, covering the whole with a fine and durable cement. All this saves space, and enables me to put about forty cartridges in my gun. Do you comprehend the drift of my remarks?”
Both of his listeners nodded assent.
Cobb loaded the gun with one of the ordinary cartridges, and then placed a bundle of common wrapping-paper on end at the other side of the room. Taking a position in the further corner, he discharged the piece at this improvised target.
The bullet entered the paper and penetrated through about forty sheets. Then, loading with one of his own cartridges, he again took the same position, and again discharged the piece.
Upon examination, it was found that over ninety-seven sheets of paper had been perforated. Cobb laid the gun on the table and said:
“You see the effect of the two cartridges! Which is the superior of the two? Of course, mine; and in effect as forty is to ninety-seven, or even more, perhaps. This is the power that will grant me my leave! This explosive is my own invention. You have seen its power. If we put gunpowder at one and that of gun-cotton at four, then that of meteorite, my new compound, would be nearly forty-six.
“Like gun-cotton, there is little or no smoke upon discharge, as you have witnessed; but, unlike gun-cotton or nitro-glycerine, the explosion is not instantaneous, but similar to that of gunpowder. Now, the amount of gas evolved upon the explosion of one grain of gunpowder is, in volume, about three hundred of carbonic acid and nitrogen, but the true volume, considering the heat, is about fifteen hundred times that of the original charge. Meteorite has a rate of combustion three times slower than gunpowder, while the volume of gas liberated is more than sixty-six times that of the latter, or about one hundred thousand times its original bulk. This is the power, as I have said, that gives me my leave of absence. On the 22d of last month I sent an application to the War Department for a leave for the purpose of perfecting a gun in which to use these cartridges. With the application I sent some of the cartridges. I also sent a sealed packet containing the formula for making the explosive, but with the positive directions that the formula should not be made known until I had perfected my experiments. I asked for leave until I had completed my work. Through the little influence I possessed, I pressed this application to be granted in the manner I asked. Yesterday I received my leave, and here it is;” and he handed Craft the following paper:
“Special Orders,
No. 156.
[Extract.]
“5. Leave of absence is hereby granted First Lieutenant Junius Cobb, Second Cavalry, from December 1, 1887, until surrendered by him in writing, or upon his return to duty, for purposes which he has communicated to this department.
“By command of Lieut. – Gen. Sheridan.
“I had this leave,” said Cobb, as he took it from Craft, after the latter had read it, “while I was talking to you last night, but I preferred not to show it to you until this evening. Any time after the first of next month I can leave the service and return when I wish, and my commission will be secured to me.”
Craft and Hathaway both told him that though they thought his undertaking was a very foolish one, nevertheless they would give him all the assistance in their power, as they had promised.
Cobb and his friends talked a little longer on various things to be done, and finally separated for the night; the two latter going home to wonder over this great scheme of their friend, the former seating himself in his easy-chair to deliberate upon the thousand and one incidentals necessary to carry it out.
CHAPTER III
In order to carry into effect this great and ambitious idea, Cobb had commenced operations as early as July.
He knew that he must find some place in which to lay his body, that would be perfectly safe from any possible disturbance. It would not do to select any house, or any particular piece of ground, nor could he go to any island or distant part of the globe.
A hundred years would make such changes that it was impossible to foretell what places would not be disturbed in that time. It was a most difficult problem to solve.
Was there a place on earth that he was sure would not be reached by human hands, and its contents and secrets made known, in a hundred years!
It was imperative that he should find such a place, and with all the assurance that one has in life of anything, that it would remain unmolested. What would not happen in a hundred years! Were he to take the most unfrequented and out-of-the-way place he could conceive of, it might be the very place of all others that would be the first to be explored by some enterprising genius in the future.
Cobb knew this, and realized the necessity of selecting such a spot as would give the utmost assurance that no one would desire to destroy, enter, or molest it in any way.
After many hours of reflection upon the subject, he at last decided upon what he considered to be the best place possible to select – the place that would, in all probability, remain in its primitive state for the period desired.
There was being built upon Mount Olympus, some three miles from the city of San Francisco, by a Mr. Sutro, a generous gentleman of that city, a reduced copy of the statue of “Liberty Enlightening the World,” then in position on Bedloe’s Island, New York harbor.
This statue was to be about thirty feet in height, resting upon a pedestal some forty by thirty feet in area, and twenty-five feet high.
Cobb conceived the idea that such a piece of work would, in all likelihood, remain undisturbed by any and every person for the period necessary for his long sleep. No sooner had this belief taken possession of him than he at once took measures to communicate with the gentleman who had charge of its construction.
A Mr. Bennett was the supervising architect, and this gentleman was easily induced, for a consideration, to undertake the construction of a small chamber within the base of the pedestal. He also agreed that the chamber should be reached through the side by a hinged block of marble fitting perfectly, but movable with ease from the inside, and that the purpose for which it was constructed should never be made known by him.
Mr. Bennett was not aware of Cobb’s true intentions regarding the chamber; it was simply a contract between them that such a piece of work should be performed. Bennett was a man of his word, and was well known to Cobb, who placed the utmost confidence in him; yet, to make it still more binding, he placed him under a sacred oath not to enter the chamber after it was built, or communicate his knowledge of its existence to any living soul, nor to leave any information of it at his death.
While the pedestal was being built, Bennett had one of the largest marble slabs taken out, at night, by workmen brought there blindfolded, and replaced upon hinges, so it would easily open and shut by the pressure of a finger on a concealed spring.
This part of the work having been accomplished, it was very easy to carry out the remainder.
The pedestal being finished and solid, he took workmen there every night, blindfolded, and opening the slab door, cut out the masonry, hauling away the material as fast as it was taken out. Cobb desired that the