them of my visit."
"Gosh! Six weeks! Then, what happened?"
"They sent a formal acknowledgment – the matter was having their consideration."
Andrew Provost leaped from his chair and stood facing Joe, biting his cigar fiercely. "You mean to tell me that that's the treatment you received? That I might expect the same to-morrow if I went to the War Office with a brilliant invention?" he demanded hotly. "Do you mean to say that I'd as likely as not be interviewed by a fellow who knew next to nothing about the matter, and that weeks would elapse before I heard from 'em again, and then only after sending 'em a reminder?"
Joe laughed. "That was my experience," he said. "I dare say others meet with the same. Tantalizing, eh, Uncle?"
"Tantalizing be hanged! If that's the sort of thing that happens, then the sooner the crowd inside that office is hauled out and booted the better. Guess live men are wanted – folks who can earn their pay – not dolls and dullards. But let's leave 'em. Tell me about the ship – go on."
"She was wrecked; a violent gale sprang up."
"Ah! Usual thing. That's the weak part about those Zeppelins," said Andrew. "They're unmanageable in a wind. A half-dozen and more of them have been wrecked; so you suffered in the same way."
"No! The gale wrecked my hangar; it was flimsily put together. That was the fault of having small funds. As to Zeppelins, I know that they have that particular weakness. Wait till you see my designs. I'm not afraid of a gale, and can manœuvre into my hangar when gusts are blowing at fifty miles an hour. Fact, Uncle! You'll see when we've finished."
Andrew Provost strode backwards and forwards before the wide-open window of the hotel. He was thinking deeply, and more than once he cast a shrewd, sharp glance at his nephew. This long-headed man was a little uneasy. And who can blame him? For, in the first place, solely on the strength of Joe's assertion, and because Mr. Reitberg had riled him, he had taken up a challenge. And now he heard his nephew declare that a fifty-mile gale was of no consequence, though to a Zeppelin airship it would prove easily disastrous. Was Joe romancing? Or was he so carried away by this work of his that his imagination made successes where they did not exist?
"No; certainly not. He looks and is clever. If he says gusts don't matter, they don't," thought Andrew, after another sharp look at his nephew. "What appears difficult to believe may very well be simple when one has seen his designs. Here, Joe," he cried. "We get drifting on; do read that document, then show me your plans. I'll pay a cheque for ten thousand pounds into your account to-morrow, and then you'll be able to go ahead. Now, the document."
Joe picked it up from the table on which it was resting. Unfolding the sheet, he disclosed at the top the arms of the Hamburg-Amerika Steamship Company, and in the right-hand corner the name of the ship they had so recently left. The date was scrawled in a firm hand beneath it, and then there appeared the following words: "I, Andrew Provost, of Park St., Toronto, Canada, and of 29 Fenchurch St., London, England, guarantee to build with the help of my nephew, Joseph Gresson, and others whom I may appoint, an airship similar to the well-known Zeppelin; that is to say, when inflated with gas the said ship shall be lighter than air. It shall be capable of lifting not less than thirty tons, of progressing against a wind at more than sixty miles an hour, and of traversing the world in any direction, keeping in the air for that purpose as long as shall be necessary, though she may be allowed to descend to the land for necessary supplies, renewals, and repairs. Should I succeed with the help abovementioned in building a ship capable of all this, and of circling the world, and should that voyage be completed within nine months of this date, then Carl Eugene Reitberg, of 42 Park Lane, London, England, guarantees to pay the full cost of the building of the said ship, and of her voyage, but not exceeding in all one hundred thousand pounds. It is further agreed that a special form of passport shall be obtained from the Foreign Office, and that the same having been initialled by the various authorities of the countries over which the ship may pass in her voyage shall be held to be proof of her voyage."
"Clear as crystal. And you can do it?" asked Andrew.
"Certainly."
"Then let's have the designs. How does your ship beat the Zeppelin? What's she made of? Tell me everything; remember I'm ignorant. I just know that an aeroplane is a heavier-than-air machine, and a Zepplin's a lighter-than-air; that is, once she's inflated with gas. Fire away. I'm dying to get in at the actual building."
Joe was a practical young fellow, and was not to be hastened. He unlocked a leather bag lying near his feet and abstracted a sheet of glistening paper. Spreading it out on the table, he showed his uncle a big detail drawing of the machine he proposed to construct.
"It's not easy to follow the outline here," he said. "Wait till the ship's finished. But you can see this much. She's long and pointed at either end, and looks like a flattened cigar. That's how she differs from the Zeppelins. She's built very flat, and extends on either side till the top and bottom half come together in what may be called a lateral keel."
"Why? Where's the reason?"
"To protect her against gusts of wind and gales. A Zeppelin can't escape. Every breath plays on her big lateral bulk. In my ship the wind strikes a thin keel on whichever side it comes, is divided there, and passes over and under the ship, sliding as it were upwards and downwards away from the gradually-sloping surfaces which lead from those keels. In fact, the ship is almost as flat as a tortoise, and as wide comparatively, though she's very much longer."
"And – and this flattening of the ship makes her laugh at gales?" asked Andrew, staring at the plans before him.
"Certainly – her shape, and other fittings. Now, let's return to the Zeppelin. It's a huge framework of aluminium, built very light and covered with a material of neutral tint."
"Which holds the necessary gas."
"No, Uncle. Which merely covers the aluminium skeleton. Inside the frame there are twenty or more balloonettes, inflated with gas. Thus if one bursts, or two, or more even, the ship still floats."
"Canny that! Smart!" declared Andrew. "Well, yours? It's a similar framework, I suppose? The same balloonettes? Where does the difference come?"
Joe bent again to his bag and produced a parcel, which he rapidly opened. He drew from the interior a sheet of shining material, which might have been glass but for the fact that it was folded half a dozen times. Placing it on the table, this sheet opened to its full capacity as soon as the weight of his fingers was removed.
"Flexible and elastic, you see, Uncle," said Joe. "And yet not extensible. See – it does not stretch. Transparent, of course – one of its least advantages – but yet one of great value in the construction of an airship."
"What! You don't mean to tell me you build the ship of that? How? What part does it form? I – look here, Joe, you're romancing."
Joe smiled; his deep-sunk eyes took on the clever expression, to which his uncle had become familiar. He placed two long objects on the table, and stood leaning the tips of his strong fingers upon them. He might have been a lecturer, and his uncle a student about to absorb his wisdom. As for the objects he had placed on the table, one was a long piece of the same transparent material, an eighth of an inch thick, perhaps, two inches wide before it was bent, and now bent all the way down its length into a right angle. In fact, composed of iron it would be known simply as "angle iron". The other object was a tube, perhaps half an inch in diameter, two feet in length, and of thinner material. Both were transparent, and exceedingly light in weight, as Andrew assured himself instantly.
"Go on," he said huskily. "What is the stuff? Not talc – that I can tell easily. Not celluloid either – you'd never
