146 History of the Sarsens. 
at least in shallow water, and probably at some periods they formed 
shoals and sandy shores. The wood recognized as coniferous must 
have grown on the land not far off. 
—> 
=> 
el 
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N 
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Ny 
NA 
Wr 
Fig. 4. A block of Sarsen, with the impression of a tap-root and rootlets of a 
Palm (?). In the Museum of Practical Geology, London Found on 
Lockeridge Down, near Marlborough, by W. Cunnington, 
Esq., F.G.S. One-half of the natural size. 
From that time onward continual changes must have occurred, 
slowly, perhaps, but surely, silting up the seas until the land was 
at its full, and then bringing the restless and resistless sea again 
