“Why, I think that’s an excellent device!” cried Stranleigh.

“I thought so, too, but there are disadvantages. The crises in which it could be brought to play are rare. As a general rule, a chauffeur is much more to be trusted than the owner, and if the owner happens to be a nervous man, he might interfere, with deplorable results.”

“Yes,” said Stranleigh, “it’s like the pistol in Texas. You may not need it, but when you do you want it very badly. Has anyone else seen this contrivance?”

“No one except my assistant.”

“Could you lend me this car to-morrow?”

“Certainly.”

“Then place the car in charge of a competent chauffeur, who knows nothing of your safety device, and send it up to my hotel at eleven o’clock. Tell him to ask for Henry Johnson. I’ll take a little trip into the country, where I can test the car on some unfrequented road.”

“Better cross the river to Canada,” said Sterling, with a smile. “Things are quiet over there.”

“Very well,” agreed Stranleigh. “You are a busy man, and I have taken up a considerable amount of your time. You must allow me to pay you for it.”