Whistling Dick waited as long as his judgment advised, and then slid swiftly to the ground. Assuming as far as possible the air of an honest labourer who seeks his daily toil, he moved across the network of railway lines, with the intention of making his way by quiet Girod Street to a certain bench in Lafayette Square, where, according to appointment, he hoped to rejoin a pal known as "Slick," this adventurous pilgrim having preceded him by one day in a cattle-car into which a loose slat had enticed him. As Whistling Dick picked his way where night still lingered among the big, reeking, musty warehouses, he gave way to the habit that had won for him his title. Subdued, yet clear, with each note as true and liquid as a bobolink's, his whistle tinkled about the dim, cold mountains of brick like drops of rain falling into a hidden pool. He followed an air, but it swam mistily into a swirling current of improvisation. You could cull out the trill of mountain brooks, the staccato of green rushes shivering above chilly lagoons, the pipe of sleepy birds. Rounding a corner, the whistler collided with a mountain of blue and brass. "So," observed the mountain calmly, "You are already pack. Und dere vill not pe frost before two veeks yet! Und you haf forgotten how to vistle. Dere was a valse note in dot last bar." "Watcher know about it?" said Whistling Dick, with tentative familiarity; "you wit yer little Gherman-band nixcumrous chunes. Watcher know about music? Pick yer ears, and listen agin. Here's de way I whistled it--see?" He puckered his lips, but the big policeman held up his hand. "Shtop," he said, "und learn der right way. Und learn also dot a rolling shtone can't vistle for a cent." Big Fritz's heavy moustache rounded into a circle, and from its depths came a sound deep and mellow as that from a flute. He repeated a few bars of the air the tramp had been whistling. The rendition was cold, but correct, and he emphasized the note he had taken exception to. "Dot p is p natural, und not p vlat. Py der vay, you petter pe glad I meet you. Von hour later, und I vould half to put you in a gage to vistle mit der chail pirds. Der orders are to bull all der pums after sunrise." "To which?" "To bull der pums--eferybody mitout fisible means. Dirty days is der price, or fifteen tollars." "Is dat straight, or a game you givin' me?" "It's der pest tip you efer had. I gif it to you pecause I pelief you are not so bad as der rest. Und pecause you gan visl 'Der Freischütz' bezzer dan I myself gan. Don't run against any more bolicemans aroundt der corners, but go away from town a few tays. Good-pye." So Madame Orleans had at last grown weary of the strange and ruffled brood that came yearly to nestle beneath her charitable pinions.