A similar one is also found about two miles south of this, and, as is this, it is on high ground, of circular form, and with a radius of about one rod. They were discovered about thirty or thirty-five years since. Nothing has been found in them, save human bones. The first, some nine or ten years since, was nearly all ploughed up and scraped into the road. It is said that “sculls, arms and legs were seen on fences, stumps and the high-way for a long time after they were drawn into the road.” On, some two miles beyond the second was discovered a burial-ground. At that place were ploughed up shell, bone, or quill-beads. Near this place was found a brown earthen pot, standing between the roots of a large tree, (maple, they think) and with a small sapling grown in it, to some six inches in diameter. Beads of shell, bone or porcupine quills have often been found. I would have remarked, that on the first mound stood a hickory-tree some two feet through. There is also a ridge at the termination of high ground; I say a ridge, it appeared to me to be a regular fortification. It is, I should judge from thirty to forty feet in length. It would appear that the ground was dug down from some distance back, and wheeled to the termination of high ground, until a bank is thrown up to a height of some fifteen or twenty feet. This ridge, some think to be natural; others, from the fact that a smooth stone, about the size and shape of a pestle, was found in it, think it to be artificial. Perhaps other relics may have been found in it that would show it to be an artificial formation. All I could learn (and I rode about seven miles out of my way to converse with an old inhabitant) was, that this pestle was found in the ridge, and within three or four feet of its surface. We may, perhaps, infer something from the size of an underjaw found here, _which is said to have been so large as to much more than equal that of the largest face in the country_. Respectfully. D. E. WALKER. (O.) Letter from H. C. Van Schaack, Esq. to Henry R. Schoolcraft. _Manlius, July 18th, 1845._ DEAR SIR: Yours of yesterday from Jamesville is received. Its enclosure is the first intimation I have of having been chosen a corresponding member of the N. Y. Historical Society. I shall be happy to advance the objects of the Society. I regret that you have not found it convenient to call, I hope you will still conclude to come. In the interim, I am convinced that Mr. C. can advance your objects better than I can; he has read several addresses on these subjects before the Literary Associations here and at Syracuse within two years past.