"Wharf rats," street gamins, Arabs, and other euphonious terms are applied to that class of boys, who, having no homes, make one for themselves in the streets. They black boots--some of them--in the day-time, sell newspapers in the afternoons, lie in wait for incoming travelers from the trains to carry satchels, etc., and make a little money from all sources to supply themselves with food and raiment. The balance, if any is left, they spend in going to the gallery of some theatre, visiting some museum, or adjourning to their favorite haunt-- which frequently is a low beer-dive in some obscure street, play pool or cards or dice for drinks, and otherwise contrive to kill time, until their "business" of the next day begins. It used to be a familiar sight to see the saloons of Baxter, Mott and Mulberry streets filled with these boys. It was only a few years ago that they had their own theatre, yclept "The Grand Duke's Theatre," at 21 Baxter street, in the cellar under a stale beer dive, where really clever performances were given of an imitative character, by a company of boys; and which, by the way, was the only theatre which for years defied the efforts of the authorities to collect the license. The admission fee was ten cents, and curiosity seekers came from all parts of the city to witness the really laughable and, in many cases, meritorious character-sketches given within its damp walls. It was subsequently broken up by the police. Boys and girls appear to be alike in one respect--the streets of the city are full of them at all hours of the day and night. The water, however, would appear to act like a magnet upon the needle, having peculiar attractions for them at all times, and to which vicinity, at night in summer, they naturally gravitate. On the piers which jut out into the rivers on all sides of the city, any one can see troupes of gamins every warm, pleasant day. Some are fishing, others are pitching pennies, others, again, playing various apparently harmless games, but all with eyes for the main chance--an opportunity to steal anything come-at-able. To the policeman who, from curiosity or to get a sniff of sea breeze, chances to stroll upon the pier, he finds them all engaged as described. Ships are unloading cargoes of assorted merchandise, which is being placed upon the dock. Bags of coffee are in one place, chests of tea in another, hogsheads of molasses and sugar, and various other kinds of goods are distributed all over the place. Some boys are playing "tag," and they run around and over the bags of coffee, behind the hogsheads of sugar, ostensibly in play, but all the while keeping a sharp eye on the watchmen, police and people employed there. A favorable chance occurring, a boy drops behind one of the bags of coffee and quickly and expeditiously rips it open with a sharp knife and bounds away. The coffee thus loosened freely discharges itself upon the dock in a little heap. In like manner a knot in the wood forming a head in a