Catlin writes thus in 1842: "Among the numerous tribes who have formerly inhabited the Atlantic coast, wampum has been invariably manufactured and highly valued as a circulating medium (instead of coins, of which the Indians have no knowledge), so many strings, or so many hands' breadth, being the fixed value of a horse, a gun, a robe, &c. It is a remarkable fact, that after I passed the Mississippi I saw but very little wampum used, and on ascending the Missouri, I do not recollect to have seen it worn at all by the Upper Missouri Indians, although the same materials for its manufacture are found in abundance in those regions. Below the Lions and along the whole of our western frontier, the different tribes are found loaded and beautifully ornamented with it, which they can now afford to do, for they consider it of little value, as the fur traders have ingeniously introduced an imitation of it, manufactured by steam or otherwise, of porcelain or some composition closely resembling it, with which they have flooded the whole Indian country, and sold at so reduced a price as to cheapen, and consequently destroy, the value and meaning of the original wampum, a string of which can now but very rarely be found in any part of the country."--Catlin, vol. i., p. 223.] [Footnote 281: "Among the numerous shells which are found on the sea-shore, there are some which by the English here are called clams, and which bear some resemblance to the human ear. They have a considerable thickness, and are chiefly white, excepting the pointed end, which both within and without hath a blue color, between purple and violet. The shells contain a large animal, which is eaten both by Indians and Europeans. The shells of these clams are used by the Indians as money, and make what they call their wampum; they likewise serve their women for an ornament when they intend to appear in full dress. These wampums are properly made of the purple part of the shells, which the Indians value more than the white parts. A traveler who goes to trade with the Indians, and is well stocked with them, may become a considerable gainer, but if he take gold coin or bullion he will undoubtedly be a loser; for the Indians who live farther up the country put little or no value on the metals which we reckon so precious, as I have frequently observed in the course of my travels. The Indians formerly made their own wampums, though not without a great deal of trouble; but at present the Europeans employ themselves in that way, and get considerable profit by it."--Kalm in Pinkerton, vol. xiii., p. 455.]