All over the old thirteen states, from Maine to Georgia, can be found agricultural estates now containing families, the descendants of those who founded them--exceptions to the general rule, we admit, of American stability of residence, but none the less gratifying to the contemplation of those who respect a deep love of home, wherever it may be found. For the moral of our episode on this subject, we cannot refrain from a description of a fine old estate which we have frequently seen, minus now the buildings which then existed, and long since supplanted by others equally respectable and commodious, and erected by the successor of the original occupant, the late Dr. Boylston, of Roxbury, who long made the farm his summer residence. The description is from an old work, "The History of the County of Worcester, in the State of Massachusetts, by the Rev. Peter Whitney, 1793:" "Many of the houses (in Princeton,) are large and elegant. This leads to a particular mention, that in this town is the country seat of the Hon. Moses Gill, Esq., ('Honorable' meant something in those days,) who has been from the year 1775 one of the Judges of the Court of Common Pleas for the county of Worcester, and for several years a counsellor of this commonwealth. His noble and elegant seat is about one mile and a quarter from the meeting-house, to the south. The farm contains upwards of three thousand acres. The county road from Princeton to Worcester passes through it, in front of the house, which faces to the west. The buildings stand upon the highest land of the whole farm; but it is level round about them for many rods, and then there is a very gradual descent. The land on which these buildings stand is elevated between twelve hundred and thirteen hundred feet above the level of the sea, as the Hon. James Winthrop, Esq. informs me. The mansion house is large, being 50x50 feet, with four stacks of chimnies. The farm house is 40 feet by 36: In a line with this stand the coach and chaise-house, 50 feet by 36. This is joined to the barn by a shed 70 feet in length--the barn is 200 feet by 32. Very elegant fences are erected around the mansion house, the out-houses, and the garden.