512 MESSES. WHITE AND TEEACHEE ON THE [Aug. I906, 



flint, which has an inclination of about 5° north-eastward — possibly 

 an oblique vein. The chalk, which is non-phosphatic, resembles 

 that of the upper part of the Micraster cor-anguinum-Zone in this 

 district ; and as the few fossils obtained during a close search 

 include no forms suggestive of newer beds, we refer it to that zone. 

 Though of little interest in itself, the pit acquires some importance 

 from its proximity to the boundary of the Eocene Beds, which come 

 on about 100 yards to the south-east, at a higher level by about 

 25 to 30 feet. 



(h) Exposure 300 yards south-west of Wyfield-Manor Farm. 



This is a broad patch of rubble, in clayey soil, about 160 yards 

 south of, and 15 to 20 feet higher than, the pit (g), and close to 

 the Eocene boundary, the position of which we could not determine 

 within a few yards. 



The chalk in the lower and western part of this scar is of the 

 same character as that seen in the last pit, and with its surface- 

 debris are associated many pieces of tabular flint. No distinctive 

 fossils were forthcoming. The rubble in the higher part of the 

 same patch, and the solid rock beneath it, however, have both 

 yielded remains of Uintacrinus. The other fossils are 



Inoceramus, 



Ostrea sp. 



Bhynchovetta plicatilis, Sow. 



Bhynchonella reedensis, Eth. 



Vincularia sp. 



Asteroid-ossicle? 



Bourgucticrinus. 



It would seem that this patch of rubble marks the outcrop of 

 beds immediately above and below the junction of the Micraster cor- 

 anguinum- and Marsivpites-Zcmes. 



Some specimens of the Uintacrinus-ChaXk contain a very small 

 proportion of phosphatized material, in the form of coprolites and 

 minute, subangular, brown objects (which may be concretions) ; others 

 contain nothing of the sort. We have observed no phosphatized 

 foraminifera. 



Having regard to the character of the Chalk in the last three 

 exposures, and to the position of the exposures themselves, it is 

 highly probable that the Reading Beds in the northern part of the 

 Borough-Hill outlier rest upon Chalk no younger than that of 

 the Uintacrimis-Band. Setting aside all question of the thickness 

 of the Uintacrinus- Chalk, there is clearly no room here for one 

 quarter of the phosphatic beds of the Marsujrites-'B&TQ.d and of later 

 age seen on the eastern side of the outlier, near Winterbourne ; and 

 the only circumstance known to us which is in any way suggestive 

 of the presence of some representative of that group near Wyfield 

 Farm was the occurrence, on the surface, of a flint-cast of EcJiino- 

 corys scutatus possessing the stunted pyramidate form characterizing 

 the species in the highest Marsupites- and lower quadratus-beds in 

 the pit (a). This cast was found, by one of us, a few yards to the east 



