8 HISTORICAL NOTICES. 



have been very much augmented, and some of the groups of organic 

 remains more fully examined. The Essay referred to contained the 

 earliest and fullest catalogue of Stonesfield fossils ; but a larger 

 return of the plants and animals of this prolific spot can now be 

 presented. 



The railway cuttings, and other excavations north of Oxford, 

 give admirable sections of the Bath oolite and upper lias, for 

 comparison with others better known to geologists. Of these, to 

 which my pupils have been often led, I communicated a notice to 

 the Geological Society . 



The brickyards of Culham afford a singular case of gault resting 

 on almost evanescent lower green-sand, which lies on Kimmeridge 

 clay; circumstances which agree with many phenomena in the 

 neighbourhood in requiring the admission of much waste at several 

 intervals in the sequence of oolitic and cretaceous beds p . 



The fossiliferous sands of Shotover Hill, and the other strata in 

 this moderately elevated ground, furnished a basis for another com- 

 munication to the same Society; in which the fluviatile origin of 

 the ' iron-sands ' is maintained by the aid of drawings and descrip- 

 tions of Cyrense, Unionida3, Paludinae, &c. Thus a 'Wealden' 

 deposit, not much differing in age from that of Sussex, is established 

 in a new situation, with concurrent conditions distinct in some 

 respects from those which accompany the better-known deposit 

 in the southern counties. No reptilian or fish remains have as 

 yet occurred in the Shotover sands q. 



Quarterly Journal of GeoL Society, May 1860. P Ib. Aug. 1860. 



i Ib. Aug. 1858. 



