"Personally," said Thornton, speaking for the first time, "I never care to take a case that involves cellar work."

We were sitting—a little group of us—round about the fire in a comfortable corner of the Steam and Air Club. Our talk had turned, as always happens with a group of professional men, into more or less technical channels. I will not say that we were talking shop; the word has an offensive sound and might be misunderstood. But we were talking as only a group of practising plumbers—including some of the biggest men in the profession—would talk. With the exception of Everett, who had a national reputation as a Consulting Barber, and Thomas, who was a vacuum cleaner expert, I think we all belonged to the same profession. We had been holding a convention, and Fortescue, who had one of the biggest furnace practices in the country, had read us a paper that afternoon—a most revolutionary thing—on External Diagnosis of Defective Feed Pipes, and naturally the thing had bred discussion. Fortescue, who is one of the most brilliant men in the profession, had stoutly maintained his thesis that the only method of diagnosis for trouble in a furnace is to sit down in front of it and look at it for three days; others held out for unscrewing it and carrying it home for consideration; others of us, again, claimed that by tapping the affected spot with a wrench the pipe might be fractured in such a way as to prove that it was breakable. It was at this point that Thornton interrupted with his remark about never being willing to accept a cellar case.

Naturally all the men turned to look at the speaker. Henry Thornton, at the time of which I relate, was at the height of his reputation. Beginning, quite literally, at the bottom of the ladder, he had in twenty years of practice as an operating plumber raised himself to the top of his profession. There was much in his appearance to suggest the underlying reasons of his success. His face, as is usual with men of our calling, had something of the dreamer in it, but the bold set of the jaw indicated determination of an uncommon kind. Three times President of the Plumbers' Association, Henry Thornton had enjoyed the highest honours of his chosen profession. His book on Nut Coal was recognized as the last word on the subject, and had been crowned by the French Academy of Nuts.

I suppose that one of the principal reasons for his success was his singular coolness and resource. I have seen Thornton enter a kitchen, with that quiet reassuring step of his, and lay out his instruments on the table, while a kitchen tap with a broken washer was sprizzling within a few feet of him, as calmly and as quietly as if he were in his lecture-room of the Plumbers' College.

"You never go into a cellar?" asked Fortescue. "But hang it, man, I don't see how one can avoid it!"

"Well, I do avoid it," answered Thornton, "at least as far as I possibly can. I send down my solderist, of course, but personally, unless it is absolutely necessary, I never go down."

"That's all very well, my dear fellow," Fortescue cut in, "but you know as well as I do that you get case after case where the cellar diagnosis is simply vital. I had a case last week, a most interesting thing—" he turned to the group of us as he spoke—"a double lesion of a gas-pipe under a cement floor—half a dozen of my colleagues had been absolutely baffled. They had made an entirely false diagnosis, operated on the dining-room floor, which they removed and carried home, and when I was called in they had just obtained permission from the Stone Mason's Protective Association to knock down one side of the house."

"Excuse me interrupting just a minute," interjected a member of the group who hailed from a distant city, "have you much trouble about that? I mean about knocking the sides out of houses?"

"No trouble now," said Fortescue. "We did have. But the public is getting educated up to it. Our law now allows us to knock the side out of a house when we feel that we would really like to see what is in it. We are not allowed, of course, to build it up again."