Among the multitude of works of art collected within the last decade very few will be found to surpass in interest the fragment of a shell gorget from the McMahan Mound, at Sevierville, Tenn. The disk, when entire, has been nearly five inches in diameter. A little more than one-third had crumbled away, and the remaining portion was only preserved by the most careful handling, and by immediate immersion in a thin solution of glue. This specimen is the first of the kind ever brought to light in this country, and must certainly be regarded as the highest example of aboriginal art ever found north of Mexico. The design, as in the other cases, has been engraved on the convex surface of a polished shell disk, and represents two human figures, plumed and winged and armed with eagles' talons, engaged in mortal combat. As in the last specimen described, this has, at first sight, an exotic look, bearing certainly in its conception a general resemblance to the marvelous bas-reliefs of Mexico and Central America; but the resemblance goes no further, and we are at liberty to consider it a northern work _sui generis_. The design has apparently covered the entire tablet, leaving no space for encircling lines. The two figures are in profile and face each other in a fierce onset. Of the right-hand figure only the body, one arm, and one leg remain. The left-hand figure is almost complete; the outline of the face, one arm, and one foot being obliterated. The right hand is raised above the head in the act of brandishing a long double-pointed knife. At the same time this doughty warrior seems to be receiving a blow in the face from the right hand of the other combatant, in which is clutched a savage-looking blade, with a curved point. The hands are vigorously drawn, the joints are correctly placed, and the thumb presses down upon the outside of the forefinger in its natural effort to tighten and secure the grasp. Two bands encircle the wrists and probably represent bracelets. The arms and shoulders are plain. The head is decorated with a single plume, which springs from a circular ornament placed over the ear; an angular figure extends forward from the base of this plume and probably represents what is left of the head-dress proper; forward of this, on the very edge of the crumbling shell, is one-half of the lozenge-shaped eye, the dot intended to represent the pupil being almost obliterated. It is certainly a great misfortune that both faces are completely gone; their exact character must remain conjectural. A neat pendant ornament is suspended upon the well-formed breast, and a broad belt encircles the waist, beneath which, covering the abdomen, is a design that suggests the scales of a coat of mail. The legs are well-defined and perfectly proportioned; the left knee is bent forward and the foot is planted firmly on the ground, while the right is thrown gracefully back against the rim at the left. Double belts encircle the knees and ankles.