Among the large number of interesting objects of shell obtained from the McMahan Mound at Sevierville, Tenn., were a number of these shell masks. In the notes of the collector they are mentioned as having been found on the breast or about the heads of skeletons. The example shown in Fig. 1, Plate LXVII, is a medium-sized, rather plain specimen from the above-named locality. It is seven and one-fourth inches long and nearly six inches wide, and has been made from a _Busycon perversum_. The margins are much decayed, and the convex surface is pitted and discolored. The inside is smooth, and has a slight design rudely engraved upon it. Of a very different type is the specimen shown in Fig. 2. It is new looking, and well preserved. The slightly translucent surface is highly polished, and the engraved lines are quite fresh looking. It was collected by J. D. Lucas, and is labeled Aquia Creek, Va. It is five and one-half inches in length by five in width, and is apparently made from some dextral-whorled shell. The outline is somewhat rectangular, the upper surface being pretty well rounded and ornamented with a corona of incised lines, which are arranged in six groups of four each. Inside of these a single incised line runs parallel with the edge, from temple to temple. The eyes are represented by small circles with small central pits, and the lids are indicated by long, pointed ellipses. From each of the eyes a group of three zigzag lines extends downward across the cheek, terminating near the edge of the plate, opposite the mouth. These lines may be interpreted in two ways: First, if the object is a mourning mask, made with especial reference to its use in burial, they may signify tears, since, in the pictographic language of many tribes, tears are represented by lines descending from the eyes, and, with other nations, running water is symbolized by curved or zigzag lines; in the second place, these lines may represent figures painted upon the face during the period of mourning, or they may simply represent the characteristic lines of the painting or tattooing of the clan or tribe to which the deceased belonged. It is not at all improbable that these objects were further embellished by painted designs which have been obliterated.