232 PROCEEDINGS OE THE GEOLOGICAL SOCIETY. [Feb. 5, 



The ironstone here is very fossiliferous in bands ; the fossils 

 noted presenting the same fades as those obtained from the Duston 

 ironstone quarries. 



Fossils from the Ferruginous Beds at Glendon. 

 Avicula Miinsteri, Gbldf. 



Astarte elegans, Sow. 

 Cardium Buckmani, Mor. 8f Lye. 

 Corbicella Bathonica, Mor. Sf Lye. 

 Trigonia compta, Lycett. 



Phillipsii, Mor. $• Lye. 



Sharpiana, Lycett. 



V-costata, Lycett. 



Unicardium, sp. ? 



Grervillia acuta, Sow. 



lata, Phil. 



Hinnites abjectus, Phil. sp. 



velatus, Goldf. sp. 



Lima, large sp. (allied to L. grandis, 



Romer) ? 

 Pecten personatus, Goldf. 

 Pinna cuneata, Phil. 

 Pteroperna, sp. ? 



Passing northwards, at Barford Bridge, about a mile from Raven 

 Wood, we again cross the meandering valley of the Ise, and again 

 encounter, on the northern escarpment, the same decisive sequence 

 of beds as that near Kettering : — 



Great Oolite Limestone. 



Upper Estuarine Series. 



LINCOLNSHIRE LIMESTONE. 



Lower Estuarine Series, 1 AT ,, , c ■, 



Ferruginous Beds, } Northampton Sand. 



Upper Lias Clay. 



For two miles further north, we pass, upon the high ground, 

 over the Great Oolite Limestone, and, with a slight incline, down a 

 narrow outcrop of the Upper Estuarine Clays, and again on to 

 the Lincolnshire Limestone. This thickens northwards ; so that, at 

 Cottingham, is a section which exposes a thickness (and this not the 

 whole thickness) of 25 feet. 



Low down in the section at Cottingham, and in the same position 

 in other sections near Rockingham, is a band containing plants, 

 mostly ferns, among which may be detected fronds in fructification 

 of Pecopteris polypodioides, Lindley ; which zone also occurs at 

 Collyweston and Easton, near "Wansford, and elsewhere, in the 

 same position. 



In the Park of Rockingham Castle* (the high ridge of which is 

 nearly 250 feet above, and overlooks to the north, the valley of the 

 river "Welland, and commands an extensive view into the counties 

 of Leicester and Rutland), I have noted the following succession of 

 beds : — 



Lincolnshire Limestone — ft. in. ft. in. 



Coarse oolitic beds 10 



Marly beds (only partly exposed) 5 



Northampton Sand — 



Lower Estuarine Sands, with argillaceous bands and 



patches, and vertical plants 13 



Ferruginous beds 14 



Upper Lias Clay. 



15 



27 



* At the western extremity of the line of my horizontal section. See PI. X- 

 fiar. 2. 



