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The Leading Fossils of the Upper and Lower Greensands 
of Wilts and Berks. By E. C. Davey. 
(Read January rrth, 1905.) 
The title of my Paper does not quite correspond with what I 
intended or promised. Instead of the Upper and Lower Green- 
sands of Wilts and Berks, I limit myself to the Upper Greensand 
of the one county (Wilts) and to the Lower Greensand of the 
other (Berks). The Lower Greensands of Wilts, exhibited at 
Seend and Bowood, do not contain any fossils that will in the 
least compare with the wonderful development that distinguishes 
the Faringdon beds, and, therefore, I am obliged to traverse the 
Wilts boundaries. But I need make no apologies for taking you into 
Berkshire—a matter of 45 miles—for I find that your excursions 
have carried you the whole length of the county, from its 
beginning at Shrivenham to its extremity at Windsor, and that at 
various periods you have visited portions of Oxon, Worcester, 
Hereford, Monmouth, Glamorgan, Hants, Devon and Dorset, 
and Cornwall. 
Somehow I do not think that the people of Bath—including 
Members of the Bath Field Club—are familiar with the Upper 
Greensand, and still less with the Lower Greensand ; and _ yet 
both formations are not only visible but conspicuous within 15 
to 20 miles of Bath,—the upper series round Westbury, War- 
minster and Devizes ; the lower series to the immediate south 
of Chippenham. ‘The explanation of the comparative and actual 
neglect of the Greensands is that other formations in the neigh- 
bourhood have exercised a superior attraction to the zealous 
Geologists who have worked out so exhaustively the paleeontology 
of Wilts, Somerset and Gloucester. Woodward, Sanders, Moore, 
McMurtrie and Winwood (Rev. H. H.) were so captivated by 
Lias and Oolite, Rhezetic discoveries and Midford Sand problem, 
Bradford Clay and Fullers’ Earth, to say nothing of Mammalian 
Gravels, that they could spare no time for Greensands ; and so, 
