Professor T. Rupert Jones — Iltsfori/ of Sarseus. 12'5 



intended building of a cliuvch there, be gathered a few rocks as he 

 came thither, but, getting tired, slept on the bank, until he awoke 

 in the morning, and to his astonishment saw the fine tower of the 

 church already up and finished. In his hurry to get up, his satchel 

 broke, the stones fell out, and one in particular remains there now ! 

 This is the most western of the Sarsens that I know of. — T. R. J. 



The microscopic structure of a piece of one of the blocks at or 

 near Staple Fitzpaiue, which had the appearance of a Sarsen, is thus 

 described by Mr. Fred. Chapman, A.L.S. :— " This rock is largely 

 composed of angular and subangular chips of quartz and chert, 

 cemented by a kind of paste of fine quartz sand and limonite. 

 The included fragments are very variable in size, the angular 

 predominating over the subangular. A fair proportion of the 

 fragments are of secondary quartz ; some clear, others with strings 

 of gas-cavities. There are a few chips of a somewhat brecciated 

 rock, not unlike a decomposed rhyolite in character. There is at 

 least one fragment of flint in the section examined. The chert 

 fragments, possibly of Cenomanian age, contain a few examples of 

 Globigerina cretacea. One of the larger pieces included in this 

 Sarsen (?) is a chert, crowded with Radiolaria, in a generally good 

 state of preservation, some of the organisms bearing long spmes 

 beset with smaller spines. Dr. G. J. Hinde, who has been good 

 enough to examine the slide, thinks that there is not enough 

 evidence for the identification of genera, but that the chert is most 

 probabl}' of Palceozoic age." 



1888. In the Museum of the Bath Institute I saw a somewhat 

 water-worn block of light-coloured saccharoidal sandstone, looking 

 very much like a Sarsen; chips of this stone show an ochreous tint 

 and siliceous cement. The Rev. H. H. Winwood, F.G.S., Honorary 

 Curator of the Museum, informs me that it came from the Victoria 

 Gravel-pit, on the right of the Somerset and Dorset Railway, where 

 the road crosses the line at South Hill. It measures 33 inches in 

 length, 16 inches where it is broadest, and 4 to 7 inches in thickness. 

 With other similar blocks it lay at the base of the gravel on the blue 

 Lias clay. At first he was inclined to regard it as having been 

 derived from the Millstone Grit of the Wick and Bristol district ; 

 but he has since seen sarsenic pebbles and blocks in the Gravel, and 

 he noticed a large Sarsen at the Westbury Ironworks. Near Uown- 

 head, in the Mendips, he has observed numerous siliceous blocks 

 having the appearance of Sarsens; but others just like them lying 

 on the north slope of the Mendips at Ashwick, contain Liassic fossils. 

 Great caution, therefore, is necessary in determining these somewhat 

 similar siliceous blocks of Pala30zoic, Secondary, and lertiary age 



respectively. — H. H. W. , , • i ^ j 



(15) Devon.— In 1822 Dr. Buckland described the large, isolated, 

 siliceous blocks, scattered about on the hills near Sidmouth, as being 

 much like the Hertfordshire Puddingstone, but having the mcliuiecl 

 flint "mostly angular" and not rounded. In 182G he referred to 

 these in Devon, and others in Dorset and elsewhere, as being tne 

 same as the recognized Greywethers. (Trans. Geol. Soc, ser. ii, 

 vol. ii, pp. 12G, 127.) 



