author - "John D. Baldwin"

oration and study of these antiquities is stated as follows: "Although possessing throughout certain general points of resemblance going to establish a kindred origin, these works nevertheless resolve themselves into three grand geographical divisions, which present in many respects striking contrasts, yet so gradually merge into each other that it is impossible to determine where one series terminates and another begins." On the upper lakes, and to a certain extent in Michigan, Iowa,