“No, sir: I am sure so,” said the old man. “The principle is as grand as it is simple; and what I like in the invention is this—you have taken up a part of the trade where it is all hand-labour—all mechanical. You are not trying to do away with brainpower.”

“I am very glad you like my idea, Mr Rowle,” said Hallett, proceeding to cover his model, which, when set in motion, ran easily and well.

“I am delighted with it,” said Mr Jabez, poking him in the chest with his snuff-box. “Now, then, go ahead, and have the thing made on a workable scale.”

“But I have not perfected it yet,” replied Hallett.

“Never mind; perfect it as you go on. You are sure to find some weak spots. If I were you, sir, I should set a good firm of engineers to work on that at once.”

Hallett smiled sadly.

“You are proposing impossibilities, Mr Rowle. This has been one of my great troubles, sir: how I was to carry on my project when I had completed my model. During the past few days I have been thinking of trying to sell the idea for what it is worth.”

“What I and let some fellow without half an ounce of brains in his skull reap all the profit? Don’t you do anything of the kind. There’s a fortune in that contrivance, Mr Hallett. Sir, it is a great invention.”

“What would you do, then?” said Hallett, smiling.

“Do, sir? I’d—I’d—”