It is worthy of remark, that, of the five great earthquakes, which this country has felt since its settlement by the English, two have gone nearly in the same track as this last did. The first, which was on June 2. 1638, 'came from the northward, and passed southward.’ By the description given of it, it was very much like our late earthquake, only perhaps not quite so violent. 'The noise and shakes of the earthquake, October 29. 1727, seemed,’ it is said, 'to come from the north-westward, and to go off south-easterly; and so the houses seemed to reel.’ As to the great earthquakes of 1658 and 1662, we have no account of the courses, which they went in. But, from the other three, it may be reasonably conjectured, that the source of our earthquakes, or the place in which they originate, is in some part of Canada, or perhaps beyond it. The extent of this earthquake seems to have been greater than that of any of our former earthquakes. This province of the Massachusetts-bay, or rather the province of New Hampshire, about the latitude of 43° north on the sea-coast, seems to have been the center of it, or the place of its greatest violence, and the shake to have been less considerable each way from hence towards the S. W. and N. E. By the accounts we have from the S. W. the shock was less at New York than it was with us; and still less at Philadelphia, which is farther towards the S. W. By the best information I can procure, the limit toward the S. W. was Chesopeak-bay in Maryland, the shock having been felt on the eastern side of that bay, and not on the western. For the other limit toward the N. E. we are informed, that the earthquake was felt at Annapolis Royal in Nova Scotia, though in a much less degree than with us. It shook off a few bricks from the tops of some chimnies, but was not perceived by vessels on the water. And a letter from Halifax says, 'The earthquake, which happened in the W. extended itself to this place, tho’ scarcely perceivable here.’ But it was not at all felt by our army, which lay encamped at Seganecto, about 100 miles N. from Halifax. Thus Halifax seems to have been very near the N. E. limit. I am not able to ascertain its eastern and western limits; but it extended to all our back inland settlements; and was perceived, though in a very small degree, by our army at Lake George, distant from hence about 130 miles N. W. by W. But it was not felt at all at the British fort of Oswego, situate on the south-eastern shore of Lake Ontario, and distant from hence about 230 miles W. by N. So great was the shock in the Atlantic, 70 leagues to the E. of Cape Anne, that the people on board a vessel there were suddenly surprised, just at the time of our earthquake, supposing they had run a-ground; till, on throwing over the lead, they found they had more than 50 fathom water. The extent of the earthquake E. and W. from Halifax to Lake George was about 550 miles; and its extent along the sea-coast, from N.E. to S.W. at least 800