Somewhere about the year 1822 the tread-mill was introduced into England. It was recommended by the "Society for the Improvement of Prison Discipline." It was the invention of Mr. Cubitt, of Ipswich, in England, and probably at that time or soon after it was used in this country. Some years since there was one, as we are informed, at the Massachusetts State prison at Charlestown. _The Tread-Mill_.--We publish to-day an interesting description of the Tread-Mill, (a new invented Machine to enforce industry in Prisons,) accompanied by a Plate representing the same, for the use of which we are indebted to the politeness of the editor of the Gazette. The introduction of these Mills into the English prisons is said to have produced much good, and the experiment is about to be tried in this country. The corporation of the city of New-York are building one in the yard of their Penitentiary. One of the late London papers announces the singular fact that on the 12th of September, at the Town-hall, Southwark, there was no charge, either of felony, misdemeanor, or assault, within the extensive district, of five parishes, from the night before. Crimes of all descriptions had lessened very much; and this decrease, it is said, is owing entirely to the heavy and tedious labor upon the prisoners at the mill. Orders had been given for the erection of several more in England. _Salem Register_, 1822. ------------------------- Description of the Tread Mill _Recommended by the Society for the Improvement of Prison Discipline._ The annexed engraving exhibits a party of prisoners in the act of working one of the tread wheels of the Discipline Mill invented by Mr. Cubitt, of Ipswich, and recently erected at the House of Correction for the county of Surrey, situated at Brixton. The view is taken from a corner of one of the ten airing yards of the prison, all of which radiate from the Governor's house in the centre, so that from the window of his room _he commands a complete view into all the yards_. A building behind the tread wheel shed is the mill house, containing the necessary machinery for grinding corn and dressing the flour, also rooms for storing it, &c. On the right side of this building a pipe passes up to the roof, on which is a large cast iron reservoir, capable of holding some thousand gallons of water, for the use of the prison. This reservoir is filled by means of forcing pump machinery below, connected with the principal axis which works the machinery of the mill; this axis or shaft passes under the pavement of the several yards, and working by means of universal joints, at every turn communicates with the tread wheel of each class.