They are also (far from the rode) commonly called Sarsdens, or Sarsdon stones. About two or three miles from Andover is a village called Sersden, i. e. Csars dene, perhaps don: Cæsar’s dene, Cæsar’s plains; now Salisbury plaine. (So Salisbury, Cæsaris Burgus.) But I have mett with this kind of stones sometimes as far as from Christian Malford in Wilts to Abington; and on the downes about Royston, &c. as far as Huntington, are here and there those Sarsden-stones. They peep above the ground a yard and more high, bigger and lesser. Those that lie in the weather are so hard that no toole can touch them. They take a good polish. As for their colour, some are a kind of dirty red, towards porphyry; some perfect white; some dusky white; some blew, like deep blew marle; some of a kind of olive greenish colour; but generally they are whitish. Many of them are mighty great ones, and particularly those in Overton Wood. Of these kind of stones are framed the two stupendous antiquities of Aubury and Stone-heng. I have heard the minister of Aubury say those huge stones may be broken in what part of them you please without any great trouble. The manner is thus: they make a fire on that line of the stone where they would have it to crack; and, after the stone is well heated, draw over a line with cold water, and immediately give a smart knock with a smyth’s sledge, and it will breake like the collets at the glasse-house. [This system of destruction is still adopted on the downs in the neighbourhood of Avebury. Many of the upright stones of the great Celtic Temple in that parish have been thus destroyed in my time.—J. B.] Sir Christopher Wren sayes they doe pitch (incline) all one way, like arrowes shot. Quaere de hoc, and if so to what part of the heavens they point? Sir Christopher thinks they were cast up by a vulcano. CHAPTER VII. OF FORMED STONES. [AUBREY, and other writers of his time, designated by this term the fossil remains of antediluvian animals and vegetables. This Chapter is very brief in the manuscript; and the following are the only passages adapted for this publication. The numerous excavations which have been made in the county since Aubrey’s time have led to the discovery of a great abundance of organic remains; especially in the northern part of the county, from Swindon to Chippenham and Box. Large collections have been made by Mr. John Provis and Mr. Lowe, of Chippenham, which it is hoped will be preserved in some public museum, for the advantage of future geologists.—J. B.] THE stones at Easton-Piers are full of small cockles no bigger than silver half-pennies. The stones at Kington St. Michael and Dracot Cerne are also cockley, but the cockles at Dracot bigger. Cockleborough, near Chippenham, hath its denomination from the petrified cockles found there in great plenty, and as big as cockles. Sheldon, in the parish of Chippenham, hath its denomination from the petrified shells in the stones there.