Implements of _bone_, on the other hand, are quite abundant, as were also fragments of bone showing the marks of the instruments by which pieces had been detached, and of such there was a considerable variety. Some of the bones were cut across by making a groove around the circumference, as one would cut a notch in a stick, and breaking the rest; and others, as the metatarsal bones of the elk and deer, were split lengthwise, by making a groove on each side nearly to the marrow cavity, and completing the division by fracture. The roughly striated surface of the groove, and its undulating course, indicate a piece of stone, and not a saw, as the instrument with which the work was done. We have found by experiment that this mode of working bone does not prove so great a labor as it might at first sight seem to be, and with care have succeeded in splitting in two, lengthwise, in the course of an hour, a piece of human ulna seven inches long, by means of a flint “chip” held in the hand. This, of course, involves a large expenditure of time, but it must be remembered that an Indian’s time was not valued. The work is rendered very much easier by keeping both the instrument and bone wet. It has been objected to the opinion, that certain implements from the European heaps were used as saws, that having wedge-shaped edges they would soon become “choked” or “jammed.” Practically this does not happen, for we have uniformly found that the roughness of the sides of the flint is sufficient to widen the groove as fast as the edge deepens it. Implements of bone made by the Indians dwelling in New England have rarely been mentioned, and are seldom seen in collections, but if one may judge from the number of specimens we have obtained, must have been in quite common use. The inhabitants of the North-west Coast, and the Esquimaux, are largely dependent upon this material, and Messrs. Squier and Davis found a few bone instruments in the mounds of Ohio. The accompanying figures, drawn by Mr. Morse, represent the forms of the more important ones discovered in the different heaps, which form the subject of this paper. Except the first, which is reduced one-half, linear measurement, all are represented of the natural size. We are unable to assign any uses for the larger part of them, and of the others can only offer a conjecture. [Illustration: Pl. 14. Fig. 1. Fig. 2. Fig. 2 _a_. Fig. 3. Fig. 4. Fig. 5. Fig. 18. Fig. 19. WYMAN ON THE SHELL-HEAPS OF NEW ENGLAND.] [Illustration: Pl. 15. Fig. 6. Fig. 7. Fig. 8. Fig. 9. Fig. 10. Fig. 11. Fig. 12. Fig. 13. Fig. 14. Fig. 15. Fig. 16. Fig. 17. 17 _a_. WYMAN ON THE SHELL-HEAPS OF NEW ENGLAND.] EXPLANATIONS OF PLATES 14 AND 15.