JBy Professor T. Rupert Jones, F.R.S., F.G.S., Sfc. 147 



over the district, this time with Arctic ice in winter, if not nearly 

 all the year through, till the sea-waters finished what the glacier, 

 rain, and river had begun by furrowing the upraised land with creeks 

 and valleys, and ultimately leaving hills and dales to be pleasantly 

 clad with verdure, as we see them now in England. Of these changes 

 few memorials in the Southern Counties are more persistent than the 

 Sarsen Stones. 



VIII. — Appendix. 



To complete a thorough view of the nature and history of the 

 Sarsens, it is necessary to give the statements of the Geological 

 Surveyors from researches made in 1858 and following years. Much 

 of their work has been done in Wiltshire, and their views are largely 

 based on what they have there made out. Mr. W. Whitaker's 

 additions to Professor Prestwich's earlier researches have already been 

 mentioned in a general manner. 



I. — Notes from the Geological Survey Memoirs, fyc. 

 § 1< 



Memoirs of the Geological Survey, &c. Parts of Wiltshire and 

 Gloucestershire, Sheet 34, 1858, p. 41—43. By A. C. Ramsay and 

 others. " In many places the surface of the Chalk is strewn with 

 blocks of hard siliceous grit, known as Druid Stones, Sarsen Stones, 

 and Grey-wethers. On Marlborough Downs, and the country to the 

 south near Marlborough and Fyfield, they are especially numerous, 

 and the walls by the turnpike-road are built of, and the roads mended 

 with them. Elsewhere on Marlborough Downs they are broken by 

 the hammer into rectangular blocks for paving-stones. A few of 

 the places where they are most numerous are marked " large stones " 

 on the Ordnance Map ; but these yield no idea of their surprising 

 number, or of the extent of ground they cover, no indication being 

 given of their occurrence over many large areas, where they strew 

 the ground so thickly that across miles of country a person might 

 almost leap from stone to stone without touching the ground on 

 which they lie. Many of these flat masses of grey grit are four or 



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