With regard to two of the megalithic circles, at first sight the constituent stones seem irregularly dotted about the field; but as we approach them the unevenly spaced stones group themselves. The material of which the greater number of the rude blocks is composed is peculiar and worthy of careful examination. It is a much altered rock consisting, in most of the stones, of an extremely hard siliceous breccia with angular fragments embedded in a red or deep brown matrix, and with numerous cavities which give it a rough slaggy appearance. Many of these hollows are coated internally with a jasper-like material, the central cavity being lined with gleaming quartz-crystals. [Illustration: FIG. 47.--The Circles and Avenues at Stanton Drew. Photograph of 25-inch Ordnance map, shewing approximate azimuths of sight-lines.] The majority of the stones were probably brought from Harptree Ridge on Mendip, distant some six miles. Weathered blocks of Triassic breccia, showing various stages of silicification, there lie on the surface; and there probably lay the weathered monoliths which have been transported to Stanton Drew. It is important to note that they were erected unhewn and untouched by the tool. A few stones are of other material--sandstone, like the “quoit,” or oolite from Dundry. In the great circle, of the visible stones some retain their erect position, others are recumbent, several are partially covered by accumulation of grass-grown soil. Others are completely buried, their position being revealed in dry seasons by the withering of the grass above them. To the east of this circle a short avenue leads out, there being three visible stones and one buried block on the one hand, and two visible stones on the other. But one’s attention is apt to be diverted from these to the very large and massive megaliths of the small N.E. circle. This is composed of eight weathered masses, one of which (if indeed it do not represent more than one), Prof. Lloyd Morgan tells us, is recumbent and shattered. From this circle, all the stones of which are of the siliceous breccia, a short avenue of small stones also opens out eastwards. The third or S.W. circle lies at some little distance from the others. The average size of the stones is smaller than in either of the other circles, and not all are composed of the same material. “The Cove,” which has been variously regarded as a dolmen, a druidical chair of state, and a shelter for sacrificial fire, is close to the church. The dimensions and numbers of the stones are as follow: Great circle, diameter 368 feet, 30 stones. N.E. „ „ 97 „ 8 „ S.W. „ „ 145 „ 12 „