"Eight turn—left turn—about turn—form fours—and so on?"

"I beg your pardon," I said, "but what did you call that?"

"Squad drill, Sir."

"O-o-h! I thought you said 'quadrille.' But I know the turns. Right turn, I turn to the right; left turn, I turn to the left; about turn, I turn just about, but not quite; form fours, I form—excuse me, but how does one man form fours?"

"There will, of course, be others," replied the Inspector. "You'll soon pick it up. And please state at what hours of the day you would be prepared to take duty."

"Well," I said, "I've practically nothing to do from the time I get up—half-past ten—until mid-day. I could also manage to spare half-an-hour between afternoon-tea and dinner. And I could just drop in here about eleven at night to see if things were going along all right. Now, if you'll kindly fetch me a bull's-eye lantern, a life-preserver, a bullet-proof tunic, some indiarubber boots, a revolver, and a letter of introduction to some of the most skilful cooks in the neighbourhood I can put in one crowded hour of joyous life before I'm due on the links."

"Just a moment," said the Inspector. "I don't want to discourage you, but kindly cast your eye over these paragraphs;" and he handed me a printed circular. "You will see that it will be necessary for you to perform four consecutive hours' duty."

"Good heavens," I exclaimed, "I don't think I shall be able to manage that. I'm in the middle of an important jig-saw; I'm expecting a new motor-car to arrive any minute; and I have a slight head-cold. However, if my country calls me, I will see what can be arranged."

I noticed the Inspector's look of admiration at my bull-dog resolution, so to hide my blushes I perused the circular.

"I see," I said, "that we are each supplied with 'one armlet.' What's an armlet?".