This was my thought as I walked the dock-quays at Liverpool, keeping watch on poor Mercantile Jack. Alas for me! I have long outgrown the state of sweet little cherub; but there I was, and there Mercantile Jack was, and very busy he was, and very cold he was: the snow yet lying in the frozen furrows of the land, and the north-east winds snipping off the tops of the little waves in the Mersey, and rolling them into hailstones to pelt him with. Mercantile Jack was hard at it, in the hard weather: as he mostly is in all weathers, poor Jack. He was girded to ships' masts and funnels of steamers, like a forester to a great oak, scraping and painting; he was lying out on yards, furling sails that tried to beat him off; he was dimly discernible up in a world of giant cobwebs, reefing and splicing; he was faintly audible down in holds, stowing and unshipping cargo; he was winding round and round at capstans melodious, monotonous, and drunk; he was of a diabolical aspect, with coaling for the Antipodes; he was washing decks barefoot, with the breast of his red shirt open to the blast, though it was sharper than the knife in his leathern girdle; he was looking over bulwarks, all eyes and hair; he was standing by at the shoot of the Cunard steamer, off to-morrow, as the stocks in trade of several butchers, poulterers, and fishmongers, poured down into the ice-house; he was coming aboard of other vessels, with his kit in a tarpaulin bag, attended by plunderers to the very last moment of his shore-going existence. As though his senses, when released from the uproar of the elements, were under obligation to be confused by other turmoil, there was a rattling of wheels, a clattering of hoofs, a clashing of iron, a jolting of cotton and hides and casks and timber, an incessant deafening disturbance on the quays, that was the very madness of sound. And as, in the midst of it, he stood swaying about, with his hair blown all manner of wild ways, rather crazedly taking leave of his plunderers, all the rigging in the docks was shrill in the wind, and every little steamer coming and going across the Mersey was sharp in its blowing off, and every buoy in the river bobbed spitefully up and down, as if there were a general taunting chorus of 'Come along, Mercantile Jack! Ill-lodged, ill-fed, ill-used, hocussed, entrapped, anticipated, cleaned out. Come along, Poor Mercantile Jack, and be tempest-tossed till you are drowned!'

The uncommercial transaction which had brought me and Jack together, was this:- I had entered the Liverpool police force, that I might have a look at the various unlawful traps which are every night set for Jack. As my term of service in that distinguished corps was short, and as my personal bias in the capacity of one of its members has ceased, no suspicion will attach to my evidence that it is an admirable force. Besides that it is composed, without favour, of the best men that can be picked, it is directed by an unusual intelligence. Its organisation against Fires, I take to be much better than the metropolitan system, and in all respects it tempers its remarkable vigilance with a still more remarkable discretion.

Jack had knocked off work in the docks some hours, and I had taken, for purposes of identification, a photograph-likeness of a thief, in the portrait-room at our head police office (on the whole, he seemed rather complimented by the proceeding), and I had been on police parade, and the small hand of the clock was moving on to ten, when I took up my lantern to follow Mr. Superintendent to the traps that were set for Jack. In Mr. Superintendent I saw, as anybody might, a tall, well-looking, well-set-up man of a soldierly bearing, with a cavalry air, a good chest, and a resolute but not by any means ungentle face. He carried in his hand a plain black walking-stick of hard wood; and whenever and wherever, at any after-time of the night, he struck it on the pavement with a ringing sound, it instantly produced a whistle out of the darkness, and a policeman.