Mr. Mifflin regarded him with pity.

"You don't know what you're up against, Jimmy," he said. "You're half a century behind the times. You have an idea that all a burglar needs is a mask, a blue chin, and a dark lantern. I tell you he requires a highly specialized education. I've been talking to these detective fellows, and I know. Now, take your case, you worm. Have you a thorough knowledge of chemistry, physics, toxicology—"

"Sure."

"—electricity and microscopy?"

"You have discovered my secret."

"Can you use an oxy-acetylene blow-pipe?"

"I never travel without one."

"What do you know about the administration of anaesthetics?"

"Practically everything. It is one of my favorite hobbies."

"Can you make 'soup'?"