"To tell you the truth," said the other gloomily, "I was going to quit at the end of this year, anyway. But I guess this ends it now. Accidents like this hurt business. I guess this closes my tour."

"Is the game playing out?"

"Not exactly! Do you know what I took out of this town last night? One hundred and ten good dollars. And to-morrow's consultation is good for fifty more. That 'spiel' of mine is the best high-pitch in the business."

"High-pitch?"

"High-pitching," explained the quack, "is our term for the talk, the patter. You can sell sugar pills to raise the dead with a good-enough high-pitch. I've done it myself—pretty near. With a voice like mine, it's a shame to drop it. But I'm getting tired. And Boyee ought to have schooling. So, I'll settle down and try a regular proprietary trade with the Mixture and some other stuff I've got. I guess I can make printer's ink do the work. And there's millions in it if you once get a start. More than you can say of regular practice. I tried that, too, before I took up itinerating." He grinned. "A midge couldn't have lived on my receipts. By the way," he added, becoming grave, "what was your game in cutting in on my 'spiel'?"

"Just curiosity."

"You ain't a government agent or a medical society investigator?"

The physician pulled out a card and handed it over. It read, "Mark Elliot, Surgeon, U.S.N."

"Don't lose any sleep over me," he advised, then went to open the outer door, in response to a knock.

A spectacled young man appeared. "They told me Professor Certain was here," he said.