Fig. 7 represents a smoothly cut bead of medium size, said to have been obtained from a grave at Lynn, Mass. It has been cut from the curved wall of some large univalve, and is very similar to modern specimens in use over a greater part of the United States. Fig. 8 belongs to a necklace brought from the northwest coast, and is very much like the specimen shown in Fig. 7. Fig. 9 is a well-made specimen from Sevierville, Tenn. The sides are ground perfectly flat and the edges are well rounded. The shell is very compact, and well preserved, and bears a close resemblance to bone or ivory. Fig. 10 represents a thin, fragile disk, from a mound in Southern Illinois. It is made of a _Unio_, and separates into thin sheets or flakes, like mica. Figs. 11 and 12 illustrate two compact, nearly symmetrical specimens from a mound at Paint Rock Ferry, Tenn. Fig. 13 is from the same locality, and is hemispherical in shape. Fig. 14 represents a button-like disk, with large conical perforation, from a mound at Paint Rock Ferry, Tenn. It has probably been made from the wall of a large marine univalve. The fine specimen shown in Fig. 15 comes from a mound in Cocke County, Tenn., and is unusually well preserved. It is very compact, having the appearance of ivory, and has probably been made from the basal portion of a large univalve. The perforation is extremely large, and is conical, having been bored entirely from one side. Figs. 16 and 17 represent two fine specimens from California. They are nearly symmetrical, the faces being flat or slightly convex. The smaller one has been coated with some dark substance--the result, probably, of decay--which has broken away in places, exposing the chalky shell. The edges are ornamented with shallow lines or notches. Such disks, when used as ornaments, probably formed the central piece of a necklace, or were fixed singly to the hair, ears, or costume. As long as these larger specimens retained the color and iridescence of the original shell, they were extremely handsome ornaments, but in their present chalky and discolored state they are not prepossessing objects. This plate will serve as a sort of key for reference in the study of beads of this class, as the specimens are typical. [Illustration: PL. XXXIII--DISCOIDAL BEADS. (1/1)] MASSIVE BEADS.