been found doubly plated, first with copper then with silver.
The Mound Builders also understood the art of casting metals, or they held intercourse with some race who did; a copper axe it “cast” has been found in the State of New York. (See Lubbock’s “Prehistoric Times,” p.
254, note.) Professor Foster (“Prehistoric Races,” p. 259) also proves that the ancient people of the Mississippi Valley possessed this art, and he gives us representations of various articles plainly showing the marks of the mould upon them.
A rude article in the shape of an axe, composed of pure lead, weighing about half a pound, was found in sinking a well within the trench of the ancient works at Circleville. There can be no doubt it was the production of the Mound Builders, as galena has often been found on the altars in the mounds.
It has been generally thought, by Mr. Squier and others, that there were no evidences that the Mound Builders were acquainted with the use of iron, or that their plating was more than a simple overlaying of one metal on another, or on some foreign substance.
Some years since, however, a mound was opened at Marietta, Ohio, which seems to have refuted these opinions. Dr. S. P. Hildreth, in a letter to the American Antiquarian Society, thus speaks of it: “Lying immediately over or on the forehead of the body were found three large circular bosses, or ornaments for a sword-belt or buckler; they are composed of copper overlaid with a thick plate of silver. The fronts are slightly convex, with a depression like a cup in the centre, and they measure two inches and a quarter across the face of each. On the back side, opposite the depressed portion, is a copper rivet or nail, around which are two separate plates by which they were fastened to the leather. Two small pieces of leather were found lying between the plates of one of the bosses; they resemble the skin of a mummy, and seem to have been preserved by the salts of copper. Near the side of the body was found a plate of silver, which appears to have been the upper part of a sword scabbard; it is six inches in length, two in breadth, and weighs one ounce. It seems to have been fastened to the scabbard by three or four rivets, the holes of which remain in the silver.
“Two or three pieces of copper tube were also found, filled with iron rust. These pieces, from their appearance, composed the lower end of the scabbard, near the point of the sword. No signs of the sword itself were discovered, except the rust above mentioned.
“The mound had every appearance of being as old as any in the neighborhood, and was at the first settlement of Marietta covered with large trees. It seems to have been made for this single personage, as this skeleton alone was discovered. The bones were very much decayed, and many of them crumbled to dust upon exposure to the air.”
Mr. Squier says, “These articles have been critically examined, and it is beyond doubt that the copper bosses were absolutely plated, not simply overlaid, with silver. Between the copper and the silver exists a connection such as, it seems to me, could only be produced by heat; and if it is admitted that these are genuine relics of the Mound Builders, it must, at the same time, be admitted that they possessed the difficult art of plating one metal upon another. There is but one alternative, viz., that they had occasional or constant intercourse with a people advanced in the arts, from whom these articles were obtained. Again, if Dr. Hildreth is not mistaken, oxydized iron or steel was also discovered in connection with the above remains, from which also follows the extraordinary conclusion that the Mound Builders were acquainted with the use of iron, the conclusion being, of course, subject to the improbable alternative already mentioned.”
In connection with this subject, we would refer to the interesting evidences that the copper mines of the shore of Lake Superior had been at some very remote period worked by the Mound Builders. There were found deep excavations, with rude ladders, huge masses of rock broken off, also numerous stone tools, and all the evidences of extensive and long-continued labor. It is even said that the great Ontonagon mass of pure copper which is now in Washington was excavated by these ancient miners, and that when first found its surface showed numerous marks of their tools.
There seems to be no doubt, then, that the Mound Builders were familiar with the use of copper, silver, and lead, and in all probability of iron. They possessed various mechanical contrivances. They were very probably acquainted with the lathe. Beads of shell have been found looking very much like ivory, and showing the circular striae, identical with those produced by turning in a lathe.
In a mound on the Scioto River was found around the neck of a skeleton triple rows of beads, made of marine shells and the tusks of some animal. “Several of these,” says Squier, “still retain their polish, and bear marks which seem to indicate that they were turned in some machine, instead of being carved or rubbed into shape by hand.”
“Not among the least interesting and remarkable relics,” continues the same author, “obtained from the mounds are the stone tubes. They are all carved from fine-grained materials, capable of receiving a polish, and being made ornamental as well as useful. The finest specimen yet discovered, and which can scarcely be surpassed in the delicacy of its workmanship, was found in a mound in the immediate vicinity of Chillicothe. It is composed of a compact variety of slate. This stone cuts with great clearness, and receives a fine though not glaring polish. The tube under notice is thirteen inches long by one and one-tenth in diameter; one end swells slightly, and the other terminates in a broad, flattened, triangular mouth-piece of fine proportions, which is carved with mathematical precision. It is drilled throughout; the bore is seven-tenths of an inch in diameter at the cylindrical end of the tube, and retains that calibre until it reaches the point where the cylinder subsides into the mouth-piece, when it contracts gradually to one-tenth of an inch. The inner surface of the tube is perfectly smooth till within a short distance of the point of contraction. For the remaining distance the circular striae, formed by the drill in boring, are distinctly marked. The carving upon it is very fine.”
That they possessed saws is proved by the fact that on some fossil teeth found in one of the mounds the striae of the teeth of the saw could be distinctly perceived.
When we consider that some of their porphyry carvings will turn the edge of the best-tempered knife, we are forced to conclude that they possessed that singular process, known to the Mexicans and Peruvians of tempering copper to the hardness of steel.
We find in the mounds adzes similar in shape to our own, with the edges bevelled from the inside.
Drills and gravers of copper have also been found, with chisel-shaped edges or sharp points.
“It is not impossible,” says Squier, “but, on the contrary, very probable, from a close inspection of the mound pottery, that the ancient people possessed the simple approximation toward the potter’s wheel; and the polish which some of the finer vessels possess is due to other causes than vitrification.”
Their sculptures show a considerable degree of progress. They consist of figures of birds, animals, reptiles, and the faces of men, carved from various kinds of stones, upon the bowls of pipes, upon toys, upon rings, and in distinct and separate figures. We give the opinions of those who have examined them.
Mr. Squier observes: “Various though not abundant specimens of their skill have been recovered, which in elegance of model, delicacy, and finish, as also in fineness of material, come fully up to the best Peruvian
