"Sure! You joke. The thing cannot be done; I know England. Men are clever there, but they have not studied these airships: they are ignorant."

"Not quite—I disagree. In six months, in three, perhaps, such a ship as sails above us could be erected; but better, with more power, a wider range, and a greater capacity for destruction."

Mr. Carl Reitberg gasped; he pulled an elegant silk handkerchief from his pocket and mopped his forehead. He was beginning to get annoyed with the calm, not to say idiotic, assurance of this young man. He looked Joe Gresson superciliously up and down, and then smiled urbanely.

"You are young," he said. "When you arrive at my age you will see your error. I, who know, say that such a thing is impossible."

"And I, Herr Reitberg, while thanking you, say that it can be done. It has been done, on a smaller scale. To-morrow, or let us say within three months, England could possess an aerial dreadnought superior to any Zeppelin. I am positive."

The smile left Mr. Reitberg's face. He looked at Joe as if he thought him mad. As for Andrew, at first he had watched his nephew with every sign of surprise, if not of disapproval. But now he smacked him on the back encouragingly.

"Bravo, Joe!" he cried. "Stick to your guns. You say England could build such a ship. Well, she's tried?"

"Yes; the Admiralty tried through their contractors, and failed."

"Ah, failed, yes!" lisped Mr. Reitberg. "So did Zeppelin. But he carried on his experiments; he succeeded. Your people did no more."

"Others took on the work."