Newcomen's atmospheric engine was first made use of to work the pumps, and it continued to be so employed long after the more powerful and economical condensing engine of Watt had been invented. In the Newcomen or "fire-engine," as it was called, the power is produced by the pressure of the atmosphere forcing down the piston in the cylinder, on a vacuum being produced within it by condensation of the contained steam by means of cold-water injection. The piston-rod is attached to one end of a lever, while the pump-rod works in connection with the other, the hydraulic action employed to raise the water being exactly similar to that of a common sucking-pump. The working of a Newcomen engine was a clumsy and apparently a very painful process, accompanied by an extraordinary amount of wheezing, sighing, creaking, and bumping. When the pump descended, there was heard a plunge, a heavy sigh, and a loud bump; then, as it rose, and the sucker began to act, there was heard a creak, a wheeze, another bump, and then a rush of water as it was lifted and poured out. Where engines of a more powerful and improved description were used, as is now the case, the quantity of water raised is enormous--as much as a million and a half gallons in the twenty-four hours. The pitmen, or "the lads belaw," who work out the coal below ground, are a peculiar class, quite distinct from the workmen on the surface. They are a people with peculiar habits, manners, and character, as much so as fishermen and sailors, to whom, indeed, they bear, in some respects, a considerable resemblance. Some fifty years since, they were a much rougher and worse educated class than they are now; hard workers, but very wild and uncouth; much given to "steeks," or strikes; and distinguished, in their hours of leisure and on pay-nights, for their love of cock-fighting, dog-fighting, hard drinking, and cuddy races. The pay-night was a fortnightly saturnalia, in which the pitman's character was fully brought out, especially when the "yel" was good. Though earning much higher wages than the ordinary laboring population of the upper soil, the latter did not mix nor intermarry with them, so that they were left to form their own communities, and hence their marked peculiarities as a class. Indeed, a sort of traditional disrepute seems long to have clung to the pitmen, arising perhaps from the nature of their employment, and from the circumstance that the colliers were among the last classes enfranchised in England, as they were certainly the last in Scotland, where they continued bondmen down to the end of last century. The last thirty years, however, have worked a great improvement in the moral condition of the Northumbrian pitmen; the abolition of the twelve months' bond to the mine, and the substitution of a month's notice previous to leaving, having given them greater freedom and opportunity for obtaining employment; and day-schools and Sunday-schools, together with the