These older records mention facts which afford a reasonable explanation of some of the ancient monuments found in the northern section of the country; as for example the communal or tribal burials, where the bones and remains of all the dead of a village, region, or tribe, who had died since the last general burial (usually a period of eight to ten years) were collected and deposited in one common grave. This method, which was followed by some southern tribes, has been described by Bartram, [Footnote: Travels (1791), p.516.] Dumont, [Footnote: Memoires Hist. La., vol. 1, p. 246.] Romans, [Footnote: Nat. and Civil Hist. Fla., pp. 88-90.] and others, but most fully by Jean deo Brebeuf. [Footnote: In his account "Des ceremonies qu'ils [les Hurons] gardent en leur sepulture et de leur deuil," and "De la Feste solemnelle des morts."--Jesuit Relations for 1636, pp. 129-139. See translation in Thomas's "Burial Mounds of the Northern Section of the United States," Fifth Annual Rept. Bur. Ethnol., p. 110. See also Lafitau, "Moeurs des Sauvages," vol. 2, pp. 447-455.] It is a well-attested fact that northern as well as southern Indians were accustomed to erect palisades around their villages for defense against attack. Some evidences of mound building by northern Indians may be found in the works of comparatively modern writers. Lewis C. Beck [Footnote: Gazetteer of the States of Ill. and Mo., p. 308.] affirms that "one of the largest mounds in this country has been thrown upon this stream [the Osage] within the last thirty or forty years by the Osages, near the great Osage village, in honor of one of their deceased chiefs." It is probable this is the mound referred to by Major Sibley, [Footnote: Featherstoubaugh, Excur. through Slave States, p. 70.] who says an Osage Indian informed him that a chief of his tribe having died while all the men were off on a hunt, he was buried in the usual manner, with his weapons, etc., and a small mound was raised over him. When the hunters returned this mound was enlarged at intervals, every man carrying materials, and so the work went on for a long time, and the mound, when finished, was dressed off to a conical form at the top. The old Indian further said he had been informed, and believed, that all the mounds had a similar origin. Lewis and Clarke mention not only the erection of a mound over a modern chief, but also numerous earthworks, including mounds, which were known to be the work of contemporaneous Indians. [Footnote: Travels, Dublin ed., 1817, pp. 30, 31, 55, 67, 115, 117, 122-125, etc.] L. V. Bierce [Footnote: Historical Reminiscences of Summit County, Ohio, p. 128.] states that when Nicksaw, an old Wyandotte Indian of Summit County, was killed, "the Indians buried him on the ground where he fell, and according to their custom raised a mound over him to commemorate the place and circumstances of his death. His grave is yet to be seen."