What race was there, other than the people of Atlantis, that existed before the Iron Age--before the Greek, Roman, Etruscan, and Phoenician--that was civilized, that worked in metals, that carried on a commerce with all parts of Europe? Does history or tradition make mention of any such? We find a great resemblance between the pottery of the Bronze Age in Europe and the pottery of the ancient inhabitants of America. The two figures on page 260 represent vases from one of the mounds of the Mississippi Valley. Compare them with the following from the lake dwellings of Switzerland: VASES FROM SWITZERLAND. It will be seen that these vases could scarcely stand upright unsupported; and we find that the ancient inhabitants of Switzerland had circles or rings of baked earth in which they placed them when in use, as in the annexed figure. The Mound Builders used the same contrivance. The illustrations of discoidal stones on page 263 are from the "North Americans of Antiquity," p. 77. The objects represented were taken from an ancient mound in Illinois. It would be indeed surprising if two distinct peoples, living in two different continents, thousands of miles apart, should, without any intercourse with each other, not only form their vases in the same inconvenient form, but should hit upon the same expedient as a remedy. We observe, in the American spear-head and the Swiss hatchets, on the opposite page, the same overlapping of the metal around the staff, or handle--a very peculiar mode of uniting them together, which has now passed out of use. A favorite design of the men of the Bronze Age in Europe is the spiral or double-spiral form. It appears on the face of the urn in the shape of a lake dwelling, which is given on p. 255; it also appears in the rock sculptures of Argyleshire, Scotland, here shown. We find the same figure in an ancient fragment of pottery from the Little Colorado, as given in the "United States Pacific Railroad Survey Report," vol. iii., p. 49, art. Pottery. It was part of a large vessel. The annexed illustration represents this. DISCOIDAL STONES, ILLINOIS. COPPER SPEAR-HEAD, LAKE SUPERIOR. BRONZE HATCHETS, SWITZERLAND. The same design is also found in ancient rock etchings of the Zuñis of New Mexico, of which the cut on p. 265 is an illustration. We also find this figure repeated upon vase from a Mississippi Valley mound, which we give elsewhere. (See p. 260.) It is found upon many of the monuments of Central America. In the Treasure House of Atreus, at Mycenæ, Greece, a fragment of a pillar was found which is literally covered with this double spiral design. (See "Rosengarten's Architectural Styles," p. 59.) This Treasure House of Atreus is one of the oldest buildings in Greece.