It seems to us very hazardous to draw any conclusions as to the religious beliefs of the Mound Builders from this effigy, or combinations of effigies. It also seems to us reasonable to suppose that but one figure was intended to be represented. A very slight prolongation of the serpent’s jaws and the limbs of the frog would connect them, in which case we would have some amphibious creature with an unduly extended tail, or perhaps a lizard. We must remember that the whole figure has been plowed over once or twice, so that we are not sure of the original outlines. We can not tell why they should represent a portion of the body as hollow, but neither can we tell why the head of the supposed serpent should be represented as hollow. We do not find any important earth-works near here. The hill on which it is placed commands a very extensive view of the surrounding country. Within the oval a pile of stones showed evidence of a long-continued fire, which would indicate that this was also a signal-mound. Prof. Putnam thinks it probable that there was a burial place between it and the large conical mound not far away.57 In the vicinity of Newark, Ohio, are two examples of effigy mounds. This cut represents what is called the alligator mound, but it is probably the effigy of a lizard. The position which this mound occupies is significant. It is on the very brow of a hill about two hundred feet high, which projects out into a beautiful valley. The valley is not very wide. Directly across was a fortified camp, in the valley below it was a circular work, and a short distance below on another projecting headland was a strongly fortified hill. The great works at Newark were six miles down the valley, but were probably in plain view. That it was perhaps a signal station, is shown by the presence of traces of fire. Alligator Mound. The length of this effigy is two hundred and five feet, the breadth of the body at its widest part, twenty feet, average height about four feet.58 The effigy mounds of Wisconsin, and the other few examples mentioned, are among the most interesting objects of aboriginal work. Except in a few favored instances, they are rapidly disappearing. To the leveling influence of time is added the assistance of man, and our knowledge of them will soon be confined to existing descriptions, unless something is at once done to preserve them from destruction. Interesting mementos of a vanished race, we turn from their contemplation with a sigh of regret that, in spite of our efforts, they are still so enwrapped in doubt.