The work of the Mound Builders in this country is generally and widely known, still it is perhaps not so generally known how common upon this continent was the general use of the serpent symbol. Their remains are spread over the country from the sources of the Allegheny in N. Y. state westward to Iowa and Nebraska, to a considerable extent through the Mississippi Valley, and along the Susquehanna as far as the Valley of Wyoming in Pennsylvania. They are found even along the St. Lawrence River; they also line the shore of the Gulf from Florida to Texas. That they were erected for other than defensive purposes is most clear; without knowing exactly what was the government of their builders the presumption is that it combined both the priestly and civil functions, as obtained centuries ago in Mexico. The Great Serpent Mound, already alluded to, had a length of at least 1,000 feet; the outline was perfectly regular and the mouth was widely open as if in the act of swallowing or ejecting an oval figure, also formed of earth, whose longest diameter was one hundred and sixty feet. Again near Granville, Ohio, occurs the form of an alligator in connection with which was indubitable evidence of an altar. Near Tarlton, Ohio, is another earth work in the form of a cross. There is every reason to think that sacrifices were made upon the altars nearly always found in connection with these mounds. Among the various animal effigies found in Wisconsin, mounds in the form of a serpent are most frequently met with, while circles enclosing a pentagon, or a mound with eight radiating points, undoubtedly representing the sun, were also found. There would seem in all these representations to be an unmistakable reference to that form of early cosmogony in which every vivification of the mundane egg constituted a real act of creation. In Japan this conceptive egg is allegorically represented by a nest-egg shown floating upon an expanse of water, against which a bulb is striking with horns. The Sandwich Islanders have a tradition that a bird, which with them is an emblem of deity, laid an egg upon the waters, which burst of itself and thus produced the Islands. In Egypt, Kneph was represented as a serpent emitting from his mouth an egg, from which proceeds the divinity Phtha. In the Bible there is frequent reference to seraphs; Se Ra Ph is the singular of seraphim, meaning, splendor, fire or light. It is emblematic of the fiery sun, which under the name of the Serpent Dragon was destroyed by the reformer Hezekiah; or, it means, also, the serpent with wings and feet, as used to be represented in funeral rituals.