joining the point of suspension and the point directly under it (over which the ball would remain if at rest) would be a flat or right plane, the angle made by each successive oscillation with any one meridian would be the _same_, so, at all the intermediate stations between the pole and the equator, where the point of suspension would move in a line, commencing near the pole with an infinitely small curve, and ending near the equator with one infinitely large (_i.e._ where the plane as described above would be thus curved), the angle of the plane of oscillation with a given meridian would, at each station, vary in a ratio diminishing from the variation at the pole until it became extinct at the equator, which variation they believe to be capable both of mathematical proof and of ocular demonstration. I do not profess to be one of the propounders of this theory, and it is very probable that you may have received from some other source a more lucid, and perhaps a more correct, explanation of it; but in case you have not done so, I send you the foregoing rough "Note" of what are my opinions of it. E. H. Y. A SAXON BELL-HOUSE. (Vol. iv., p. 102.) Your correspondent MR. GATTY, in a late number, has quoted a passage of the historian Hume, which treats a certain Anglo-Saxon document as a statute of Athelstan. As your correspondent cites his author without a comment, he would appear to give his own sanction to the date which Hume has imposed upon that document. In point of fact, it bears no express date, and therefore presents a good subject for a Query, whether that or any other era is by construction applicable to it. It is an extremely interesting Anglo-Saxon remain; and as it bears for title, "be leodgethincthum and lage," it purports to give legal information upon the secular dignities and ranks of the Anglo-Saxon period. This promises well to the archæologist, but unfortunately, on a nearer inspection, the document loses much of its worth; for, independently of its lacking a date, its jurisprudence partakes more of theory than that dry law which we might imagine would proceed from the Anglo-Saxon bench. Notwithstanding this, however, its archæological interest is great. The language is pure and incorrupt West Saxon.