Passing west to the Mississippi in Missouri we have the so-called hematite belt. Along the Missouri River occur great quantities of iron ore, and the natives worked this into hematite axes, celts, plummets, etc. This region of central Missouri appears to be different from southwestern Missouri. Central and western Missouri (outside of the Ozarks) are also different from the cultures bordering along the Mississippi River, or eastern Missouri. In Kansas and Iowa we have the large notched hatchets which are peculiar to that section of the country, the white flint of Iowa, the dark chert of Kansas, and the minute arrow-heads, the small almost square hand-axes, the profusion of yellow chert and poor jasper hide-scrapers. These are always typical of the buffalo country. But the strangest culture, it seems to me, in America is that of the cave region of the Ozark Mountains, where Dr. Peabody and myself made several investigations. In southwestern Missouri, northwestern Arkansas, and Indian Territory, in both limestone and sandstone formation, are some thirty-five or more natural caverns which had been inhabited by man. In these are great quantities of ashes and debris. Our inspection of four or five of these caves, the study of local collections, and an examination of village-sites in the region revealed the fact that chipped implements of the village-sites are of different stone from those from the ashes in the caverns. That man in the Ozark region had no pipes, no slate articles, no problematical forms, no roller or bell-shaped pestles, no shell ornaments, no copper, no hematite, no celts, no grooved axes, etc. I say none, although in the entire region one slate article, one pipe, and two axes have been found. These may be considered as brought in by later Indians. The chipped implements are rough—save here and there a long, slender, well-chipped object; they are seldom well made. There is a profusion of sandstone mano-stones and mortars. There is every indication that the culture is extremely old and very primitive, as stalagmites have formed (notably in Jacob’s Cavern) over some of the human remains. This Ozark culture, as stated above, was carefully worked out by Peabody and myself, and was found to be an anomaly in American archæology. I am persuaded that there are other and equally peculiar local cultures to be found if one searches diligently. The Southern culture shows local developments. It is chiefly distinguished by its pottery, which is different in Florida from that of Missouri and from Louisiana. The flint implements also differ, as do many of the types in stone. In Florida stone celts occur, but axes are extremely rare. In Texas there is peculiar culture, chiefly of chipped implements of a rough sort and small minute arrow-points well made, with little or no pottery, with almost an entire absence of problematical forms, and of copper, little hematite, etc.