156 me. a. j. jukes-Browne on [May 1906, 



Micheldever and Sutton Scotney, where patches of Clay-with-Elints 

 occur at a still lower level, that is, down to 270 feet. 



It is, therefore, of great importance to ascertain what zone of 

 the Chalk underlies the Stratton outlier ; for, if it were found to 

 rest on the zone of Micr aster cor-anguinum, we should have proof 

 of a certain amount of pre-Tertiary erosion, and should iufer the 

 existence of a broad anticline of Chalk which was subsequently 

 indented by a local post-Eocene syncline. Whereas,' if the Chalk 

 belongs to the zone of Marsupites, or to that of Actinocamaoc quad- 

 ratics, there would be no proof of a pre-Tertiary anticline, and we 

 should infer that the flexure which brings the Eocene down to this 

 level was entirely of post-Eocene date. 



Mr. Charles Griffith, E.G.S. (to whom I applied for information 

 on this point), was kind enough to visit Stratton, but could not 

 obtain any definite evidence. The chalk-pits which he visited were 

 much overgrown ; of one exposure he writes : — 



' The appearance of the chalk and tbe flints suggests the zone of Marsupites, 

 but I saw no plates, either of that fossil, or of Uintacrinus.' 



"Westward, by the side of the railway west of Micheldever and 

 south of Weston Colley, is a quarry from which Off aster pilula has 

 been obtained ; while at Micheldever Station, 3 miles north of this, 

 the zone of Mlcraster cor-anguinum comes in. 1 Mr. Griffith has also 

 found Off aster pilula in a quarry at Sutton Scotney, and Actino- 

 camax granulatus in another about 2 miles north of that village. 

 Thus, all the available evidence points to the conclusion that 

 Stratton lies on one of the higher zones, either that of Marsupites 

 or that of Actinocamaoc quadratics, and that the second of the 

 inferences above-mentioned is correct. 



Passing now to the southern part of Sheet 300, we remark 

 an entire absence of Clay-with-Elints over the tract between 

 Winchester and the Meon Valley. This is what might be expected, 

 over an area where detritive agencies must have been especially 

 active. Although it has generally been supposed that the Winchester 

 uplift is a continuation of the Petersfield anticline, it may be 

 objected that there is no proof of the connection between them, 

 and that the former may terminate eastward in the district marked 

 Temple Yalley on the Ordnance map. It may be so ; but if my 

 readers have by this time gained any of the confidence which I feel 

 in the position of patches of Clay-with-Elints as guides to the pre- 

 vious disposition of Eocene deposits, they will notice as a significant 

 fact that there is no fan-shaped disposition of Clay-with-Elints 

 round the supposed end of the pericline. On the contrary, a series 

 of patches of this material form a curved band between Avington 

 and West Meon, this band conforming exactly to a curved line that 

 would unite the axes of the two uplifts. 



Such a series of patches are obviously explicable as the remnants 

 of a sheet of material which had originally spread over the whole 



1 ' The Cretaceous Eocks of Britain ' Mem. Geol. Surv. vol. iii (1904) p. 188. 



