The modes of disposal of the dead were various among the native races of America, and most of them may be matched by customs obtaining in the Eastern hemisphere or the Polynesian islands. The commonest method was some form of inhumation in pits, graves, or holes in the ground, in stone graves or cysts, in mounds, beneath or in houses, or in caves. Embalmment, to a limited extent, was also practised, the corpse being wrapped in garments and made up into a bundle before being placed in the earth, a cave, charnel-house, or in a box mounted on a scaffold. Surface-burial was in use in some districts, the corpse being placed in a pen, a hollow tree or log, or simply covered with loose earth, or bark, or rocks forming cairns. In several regions, at various times, cremation was the rule, or at least a partial burning, the resulting bones and ashes being preserved by some tribes and scattered by others. Aerial sepulture is the name given to another method, where the body was left in the cabin or wigwam, deposited on scaffolds or trees, in boxes or canoes, sometimes supported by posts, sometimes resting on the ground, placed in baskets perched on pinnacles of rock or hung to the branches of trees,—the last being the mode often adopted in the case of children. Lastly, some nations were accustomed to sink their dead beneath the water, or turn them adrift in canoes.

It is manifest that many of these practices could not be shown, from the nature of the case or the limits of space, except by pictures or models; but certain forms are represented in the great stocking-foot-shaped jars of coarse earthenware which served as coffins in the Nicaraguan region, in cinerary urns, in bones and skulls prepared to be kept as a sacred heirloom in the family, and in various descriptions of mummies, swathed and unswathed, chiefly from Peru and from caves in Mexico.

It has always been the habit of savage and semi-barbarous people, the world over, to bury with their dead or destroy at the grave more or less property which may or may not have belonged to the deceased persons. Among some of the American Indians this was carried to such an extent as utterly to impoverish all the relatives, who, in fact, seem to have accumulated wealth solely for the purpose of funereal display. By a few tribes, like the Natchez, human sacrifice—forcibly of slaves, voluntarily on the part of relatives—was enjoined whenever a prominent man died. In most nations, however, the sacrifices were limited to horses, dogs, and food-animals, ornaments and implements. It was believed that in the spirit-land to which the soul was going this property would be of service and these slaves and wives and various objects would be necessary in order that the dead man might be well fitted to pursue his immortal journey. Therefore, when a grave is opened or any form of burial-place is found by the archæologist, he is almost sure to obtain a quantity of imperishable property,—weapons and ornaments of stone, bone, or metal, clay food-dishes, and the like,—the history of which is identified with that of the deceased and tells his story.

Two classes of burial-places have been the subject of special exploration and study by this museum, generally under the personal supervision of Professor Putnam, or of Mr. Lucien Carr, his assistant. One of these are the strange stone cysts of Tennessee, which occur in thousands in the Cumberland valley. They were from two to four feet below the surface, and were made of large slabs of stone, placed edgewise to form the sides and ends, on which other flat stones rested, forming the top of the grave. The bottoms of these cysts were sometimes lined with small stones, oftener with large potsherds, while in some instances the lining was probably of bark. While most of the cysts contained only a single body, two, three, and even five skeletons were found together in a few instances. Each grave held a greater or less quantity and variety of articles of native manufacture. Stone implements were rarer than is customary elsewhere, but those present were unusually fine. One of the skeletons had a stone arrow-head embedded in the spine. The pottery was more abundant, and consisted for the most part of well-made water-bottles and food-dishes, ornamented by incised lines or designs in color. Implements and ornaments of bone, stone, and shell, beads of terra-cotta and shell, small mollusks perforated for stringing, a few carved pipes of pottery, stone, etc., were also gathered and brought to Cambridge.

While cemeteries of this character are known to have extended over wide areas of lowland, stone graves were also built into low pyramids by placing one tier on top of another until from four to six had been laid. Each tier as completed—probably each grave as added—would be covered with earth, so that the whole formed a burial-mound fifty feet or more in diameter and eight or ten feet high (the bottom tier of graves being sunken), containing perhaps two hundred bodies. Not only within the cysts, but on and around the stones throughout the mound, were exhumed many relics, especially of pottery, showing that food and offerings had been laid upon the graves after they were closed. Nowhere was there the least indication of any contact with Europeans; and these cemeteries undoubtedly antedate the coming of the whites.

Among the most strikingly interesting discoveries made during the past few years is the burial-place in the Miami valley of Ohio, with its hundreds of singular pits dug in the hard clay below the leaf-mould in which the skeletons are found. This place was discovered by the members of the Madisonville Literary and Scientific Society, which, during three or four years, carried on an exploration under the personal direction of Dr. C. L. Metz. In 1880 the Peabody Museum was invited to join in the exploration, and Professor Putnam visited the locality soon afterward. The result of this co-operation is apparent in the large collections brought to the museum, where the contents of several of these strange pits are shown, as well as thousands of objects obtained from others or occurring with the skeletons in the leaf-mould. More than fifteen hundred pits and a thousand skeletons have now been uncovered and examined, several acres having been dug over, foot by foot, with painstaking completeness.

The pits, hollowed out of the underlying clay, are from two to seven feet in depth, and about four feet in diameter, hidden under a stratum of slowly-accumulated leaf-mould two feet thick. The majority of them, evidently, had been made previous to the burial of the bodies, though some were more recent than a few of the graves. The labor expended in digging them, and the peculiar character of their contents, render it not improbable that they were made in pursuance of some superstition or as part of a religious rite. This is an unsatisfactory generality, but more cannot yet be said with safety.

The average pit may be said to be filled with ashes in more or less well-defined layers. Near the top there may be a mixture of gravel, but underneath are found only fine gray ashes to the depth of one or two feet, in which often occur thin strata of charcoal or sand, while at the bottom burnt stones have often been found. Throughout the whole mass of ashes and sand, from top to bottom, are bones of fishes, reptiles, birds, and mammals. The larger bones, such as those of the elk, deer, and bear, are broken; and all, apparently, are those of animals used for food. With the bones are always many shells of fresh-water mussels (Unionidæ), the more massive of which have a large circular piece cut out near the centre. Fragments of pottery (rarely a whole vessel) also abound in each pit, quantities of implements made of bones and antlers, some forms of which are unlike anything known elsewhere, implements of chipped and polished stone, pipes carved in various shapes from stone, and objects of copper. In some pits several bushels of charred corn, which had been covered with bark matting, lay underneath the ashes; and in three instances human skeletons, or parts of skeletons, have been found in the pits,—a fact which seems to have no special significance.

On the hill-side near this great cemetery is to be seen what doubtless is the site of the permanent village of the people who made the ash-pits. This site is indicated by several earth-circles, the explorations of which, prosecuted by means of trenches, revealed in the centre, upon the hard clay, beneath about two feet of accumulated leaf-mould, fireplaces made of large stones, enclosing beds of ashes mingled with potsherds, flint-flakes, burnt bones, and perforated shells like those in the pits. The few things disclosed within the circles, and the abundance of household-utensils and refuse found in the ashes in the pits, suggest the possibility that on special occasions all the articles in the house, with ornaments, weapons, and other personal property, were partly destroyed by fire, gathered up with the ashes, and deposited in a pit dug for the purpose, while the great number of broken bones of various animals indicates that at such times feasts were held. A custom like this, which is quite consistent with the Indian character as manifested within the historic period, would account for the character of the contents of the pits, while their great number would indicate a long-continued occupation of the village.

Another phase of American archæology remains to be considered. It is represented in the museum by a unique and most interesting series of specimens illustrating every detail with the greatest particularity and exactness, so that future students need lose no essential feature of the picture that lay before the original explorers and describers. In the northeastern part of Anderson township, near the Little Miami River, a group of earth-works exist which are among the most remarkable of all the thousands scattered throughout the Ohio valley. The owner gave to the museum the exclusive right of exploration, and the locality was mapped and investigated with that scientific care which alone can give the results entire credibility and value. Several of the thirteen mounds within one of the encircling walls contained basins or "altars" of burned clay, on two of which were literally thousands of objects of interest, embracing forms unlike anything known before, and exhibiting an unsuspected degree of cultivation in their makers,—cultivation which, it is fair to suppose, could have been arrived at only after a long period of peaceful and prosperous life in the community. I have space to mention only a few of these articles.