418 ME. L. EICHAEDSON ON THE INFERIOE OOLITE [Nov. 1907, 



(F) Quarry at Avo'ncliff Aqueduct. 



Thickness in feet inches. 

 Fullers' Earth . . Clay, pale-grey, with irregular masses of 

 argillaceous limestone ; Terebratula globata, 



auctt. (common), Pteria sp 



II. Anabacia- a. Limestone, brownish, very hard and splin- 



Limestones. tery, top-bed well bored and covered with 



oysters 1 3 



b. Limestone, hard, white, oolitic, top-bed 

 well bored by Lithophagi and annelids, very 

 shelly ; Anabacia complanata (Def ranee), 

 Isastrma Bichardsoni, Edw. & Haime, Li- 

 mea duplicata, Trigonia duplicata, Astarie 

 clypeata, Witch ell, Pecten (near to) articu- 

 latus, Schlotheim, ' Terebratula globata,' 

 Werincea Guisei, Witchell, Galeolaria 

 socialis, Goldfuss, Serpula sp.. not yet 



identified, Cerithium (cast of ?) 5 3 



III. Doulting Limestones, massive, yellowish, with shell- 



Stone. fragments ; seen 9 



In dealing with the several sections showing the junction of the 

 Inferior Oolite with the Fullers' Earth, it may have been noticed 

 that the rubbly bed designated I a at Midford has not always been 

 elearly indicated. This is due to the fact that, in some cases, its 

 true significance was not appreciated until many of the sections had 

 been examined and it was not found possible to visit them again ; 

 and in others, to the ill-definition of the bed. It is intimately 

 associated with the Fullers' Earth, and is usually crowded with a 

 somewhat flat form of ' Terebratula globata.' The bed might have 

 been conveniently spoken of as the ' Globata-Bed,' had it not been 

 that this term has been otherwise applied. The bed at Midford, 

 as already stated, belongs to the Clypeus-Giit, rather than to the 

 Fullers' Earth. Its intimate association with the Fullers' Earth at 

 Midford, and at several other localities, shows that the two deposits 

 are ' in sequence ? — not ' non-sequentially ' related. The break at 

 Midford comes just below the local ' Globata-Bed.' Therefore the 

 place to look for additional deposits is between it and the Anabacia- 

 Limestones. The gap is partly bridged over at Twerton Hill and 

 in the Doulting-Bridge Quarry by the main mass of the Rubbly 

 Beds of those localities. 



(4) The Stantonbury-Hill Outlier. 



I have not had the opportunity of visiting this hill, but Mr. J. W. 

 Tutcher has, and I am indebted to him for the following informa- 

 tion (in litt., January 17th, 1907): — 



' The base of the hill is Lower Lias, resting on a platform of Ostrea- and 

 Planorbis-Beds. The Middle Lias is probably absent, but the Upper Liassic 

 clays are almost certainly represented, and are succeeded by a considerable 

 thickness of Midford Sands. The Inferior Oolite which caps the hill rests 

 directly upon the Sands. It consists of loose rubbly limestones, 7 to 8 feet 

 thick.' 



