DELAWARE COUNTY. 51 ancient fortifications or works of defence^ but wlien or by whom they were erected is mere conjecture. I am informed by Mr. Dickinson^ who resides near them, that in that vicinity were once found what was supposed to have been a stone battle-axe, and that arrow-heads exist in great abundance in that imme- diate locality, which strengthens the opinion that they were of Indian occupation. They are two in number, each of a circular form, and have been surrounded by a high embankment, pro- tected by a deep ditch. The one on the east side of the river has been passed over many times with the plow, but much of its original symmetry and form are still visible. The other, on the opposite side, further down the stream, is still surrounded by a deep ditch filled with growing trees and underwood, but has less regularity, and will not so soon attract the attention of the antiquarian. , .