hammers, are found in the ancient mounds that extend in an unbroken line from Ohio to Mexico, induces the belief that the ancient miners and the ancient mound-builders were the same people. It is said that artificial mounds are found in British America; and I was informed of one upon the banks of the Ontonagon River, about six miles from its mouth, but was unable to visit the spot. It is well known that they are quite abundant in Wisconsin, and extend the entire length of the Mississippi Valley. It is a noticeable fact that as we proceed south we find the mounds generally larger and more symmetrical than those in more northern latitudes. It would seem that the people who constructed those in British America, in moving southward, (for we strongly suspect that this people originally crossed Behring's Strait from Asia,) improved in their style of building, and, on arriving at the Ohio River, had so far improved as to be able to construct those interesting works at Marietta, Moundville, and other points in that region. It was not till about the time they reached the Ohio Valley that they manufactured pottery. In that valley, and thence to Mexico, fragments of earthen ware are very common; and in the mounds entire vessels are not unfrequently found. Upon reaching Mexico, the mounds are seen to be still further improved in size and form, and specimens of ancient pottery are more abundant. The great mound or pyramid at Cholula, which is a fair type of the mounds in Mexico, is fourteen hundred and twenty-three feet square at the base, and one hundred and seventy-seven feet high, being larger than the celebrated pyramids of Egypt. This immense structure is said to have been built by the Toltecs, a people who, according to tradition, as communicated to the Spaniards, entered Mexico from the North in the year A.D. 648, and established their capital on the northern confines of the great valley of Mexico, at Tula, the remains of which city were visible, and a record made of them, at the time of the Conquest by Cortés.