58 Professor T. Rupert Jones — History of Sarscns. 



(Proc. Geol. Assoc, vol. xv, pp. 196 and 236). He duly mentions 

 that Mr. Whitaker regards the Hertfordshire Pudding-stone of the 

 neighbourhood under notice as having, in part at least, been con- 

 solidated pebble-beds of the Woolwich and Reading Series, like 

 those at Addington, near Croydon. See also Mr. Whitaker's Address- 

 to the Herts Nat. Hist. Soc., Proc., vol. x, pt. 4 (September, 1899), 

 p. 116. 



(5) BucTcinghamsJiire. — 1890. A row of coarse, gravelly Sarsens 

 lies along the side of the road up to the church at Badenham. They 

 were placed there by the Eector, who said that such stone underlies 

 the Rectory house and lawn cl()s>e by ; and some blocks of it were 

 still lying about there. In the cliurch tower, up along the re-entrant 

 angles of the buttresses and tower, numerous ordinary fine-grained 

 Sarsens are built in with the flint-work. Professor Prestwich said, 

 June 21st, 1890, that the coarse-grained Sarsens at Bradenham cam© 

 from the base of the Tertiaries. 



In Buckinghamshire Sarsens are known as 'Wycombe stones,' and 

 in the Bagshot district as ' Heath stones.' 



(6) Oxfordshire. — 1871. Professor J. Phillips regarded the 

 Sarsen stones as concretionary portions of extensive sand-beds once 

 overlying the district with its previously excavated Chalk valleys. 

 The loose sands were carried away by denudation, and the solid 

 portions suffered displacement. Some containing flint pebbles and' 

 fragments lie on the north side of the Wiltshire downs. Some larg& 

 Sarsens are found in the Drift, for instance at Long Wittenham, 

 near Abingdon. See his " Geology of Oxford and the Valley of the 

 Thames," 1871, pp. 447 and 462. 



(7) Middlesex. — 1891. Horace B. Woodward, in the Geol. Mag.^ 

 Dec. Ill, Vol. VIII, pp. 119-121, succinctly described a very large 

 Grey wether, of irregularly quadrangular form, that was found 

 lying in the London Clay, at the bottom of the Thames 

 Valley Gravel, at Moscow Road, Bayswater, in enlarging the 

 cellarage of the '* King's Head." It was 9 ft. 6 ins. long, and at 

 least 2 ft, 8 ins. thick. Mr. H. B. Woodward remarks that Sarsen* 

 have been found in many places at the same horizon in the base 

 of the Thames Valley Gravel — at the Law Courts in the Strand,. 

 and near Kew Bridge ; at Ealing in the Brent Valley ; at II ford, and 

 at Grays ; but not usually of large size nor common. He notes 

 also that Sarsens and Hertfordshire Puddingstone occur in the 

 Brickearth in Buckinghamshire, derived in Glacial times from the 

 wreck of Woolwich Beds and Bagshot Sands. The Thames Valley 

 got its gravel mainly from the Glacial Drift. The Bayswater Sarseu 

 is six miles distant from nearest known Glacial Drift ; and, he says,. 

 *' it is quite possible that this particular block may have been 

 derived directly from an outlier of Bagshot Sands, or it may hav© 

 been left as a relic of Preglacial denudation near the spot where it 

 has now been found." 



1895. At the Grove, Stanmore (the residence of Mrs. Brightwen),. 

 large Sarsens have been collected from the neighbourhood and made 

 into a grotto. Que slab measures about 6 X 3 X 2 feet; another^ 



