Vol. 52.] THE UPPER PORTION OF DUNDRZ HILL. 669 



30. Dundry 1 Hill: its Upper Portion, or the Beds marked as 

 Inferior Oolite (go) in the Maps of the Geological Survey. 

 By S. S. Buckman, Esq., F.G.S., and E. Wilsox, Esq., F.G.S. 

 (Read May 13th, 1896.) 



Contexts. 



Page 



I. Introduction 6<>9 



II. Historical Retrospect 670 



III. The Sections and their Interpretation 076 



Section I. Western End, near Castle Farm 670 



II. Clements' Yard 679 



III. The Freestone Quarry near the Church 679 



IV. The Northern Alain-road Quarry 680 



V. East Dundry Village 682 



VI., VIa, VIb. Above Hill Farm 683,684 



VIL, VIIa. Maes Knoll 684,686 



VIII. Barns Batch 689 



VIII a. Barns Batch Spinney 689 



IX., IX a. The Southern Main-road Quarry 691 



X. Backledown Farm 692 



IV. The Development of tbe Dundry Strata 693 



Table! West to East 694 



II. North-west by North to South-west by South 696 



III. Xorih-west to South-east 696 



V. Tbe Stratigraphical Sequence at Dundry Hill, with Table IV. ... 697 



VI. The Faunal Sequence, with Tables V. & Va 697 



VII. The Correlation of the Dundry Strata with tbe Rocks of the 



Cotteswold and Dorset-Somerset Areas ; with Table VI 704 



VIII. Remarks on tbe important Features of tbe Dundry Strata 703 



(1) The Marlstone Rock 705 



(2) The Blue Ironshot-beds 706 



(3) The Dumortieria-beda 7(i7 



(4) The Strata of Aalenian Age 708 



(5) The Strata of Bajocian Age '. ... 708 



(6) The Strata of Bathouian Age 709 



(7) The Geographical Extent of the Ironshot Oolite 709 



(8) The Geographical Extent of the Freestone 710 



IX. The Bajocian Denudation, with a Section at Wellow 711 



X. The Water-bearing Beds of Dundry Hill 713 



XI. The Map of Dundry Hill, presented with this Paper 714 



(1) The Comparison of the Survey Map therewith 718 



(2) The Comparison of Sanders's Map therewith 718 



XII. Summary 719 



I. Introduction. 



We must explain our title. It has been difficult to find a designa- 

 tion sufficiently terse and yet duly comprehensive. Had we spoken 

 of ' the Inferior Oolite of Dundry Hill ' we should have made use 

 of a term which is notoriously indefinite, has very different values 

 in different parts of the country, and even in its widest application 



1 Dundry probably means 'wooded hill,' 'hill of trees,' dr- or tr- being 

 the common Aryan base of words for a tree. But other etymologies arc 

 possible: — thus the Welsh din dry means 'forward hill,' which would bo a 

 a correct description of the relation of Dundry Hill to the Mendipa. 



L'z2 



