E. H. Davis, Ancient Monuments of the Mississippi Valley
“ BEADS.—The number of beads found in the mounds is truly surprising. They may be counted in some instances by hundreds and thousands,—each one the product of no inconsiderable amount of labor, unless our estimate of the means and facilities at the command of the makers is greatly underrated. The character of some of these beads, made of shell and enveloped in metal, has already been noticed. Others are composed of shell, worked into every variety of shape, round, oblong, and flattened ”
