1873.] SHAKP — OOLITES OP NOPvTHAMPTOXSHIKE. 255 



instance of the remains of carnivorous mammalia, or of any thing 

 allied to a cave-deposit, which has occurred in this part of England. 



By a well sunk at the distance of a few yards from Tinkler's 

 quarry, limestone and other heels are shown to extend downwards 

 for some 20 feet helow the floor of the quarry, Slate appearing at 

 the hottom. It is prohable that some of these beds are analogous 

 to the superincumbent beds of Collyweston. 



Professor Morris, in his well-known Paper on the Lincolnshire 

 Oolites, published in the Society's Journal for 1853, gives, on 

 page 336, the following as a foot-note : — 



" At Tinkler's quarry and the adjoining lands near Stamford, a typical series 

 of the whole district may be observed. In a higher part of the hill, the stra- 

 tified and bituminous clays, with the ferruginous band, may be observed, over- 

 lying the freestones (Ketton and Casterton) : the lower parts of the freestones 

 form the top of the quarry ; below which — 



ft. in. 



1. Compact oolitic rock, few shells 2 



2. Concretionary compact marly oolite, full of shells, and zones 



of corals, the bottom more compact, the upper part marly, 

 and decomposes more rapidly, containing shells in great 

 abundance 4 



3. Compact hard shelly oolitic rock, Nerincea, &c 2 6 



4. Compact oolitic rock, somewhat crystalline 1 6 



5. Shaly bed, irregular laminated fragments of plants, and 



many compressed shells, Lucina, Pecten, &c 2 



6. " Stamford Marble "—very compact marly limestone, full of 



shells and corals, Nerincea abundant 2 6 



7. Indurated, somewhat marly rock 3 



8. Compact rock 1 6 



9. Compact, marly, coarse-grained oolitic rock 2 6 



10. Fine-grained oolitic rock 1 



11. Cream-coloured marly rock* ; with Nerincea abundant, Lima, 



Terebrattda, Isocardia (Ceromya), Modiola, Lucina, &c... 1 6 



12. Coarse oolitic rock 2 feet to 26 



Probably resting on the sands with slaty beds, which have been found in 



sinking lower down the hill, overlying the ferruginous rock, which covers the 

 Upper Lias." 



This series, thus noted by Professor Morris twenty years ago, 

 may still be considered, so far as it goes, to be " typical " of the 

 district ; but, as might be expected, the then section in Tinkler's 

 quarry does not exactly agree with that now exposed; which, of 

 course, is at some distance from the former site. A comparison 

 will exhibit differences, and yet a remarkable coincidence. Al- 

 though entirely different sets of figures represent the various thick- 

 nesses of the beds of the two sections, these figures, when summed 

 up, give total thicknesses for the two sections almost identical. 

 Thus, the section recently measured by me exposes a thickness of 

 about 29 feet, to which may be added the further thickness of 

 20 feet penetrated by the well, giving a total thickness of 49 feet. 

 Professor Morris's measured and estimated thicknesses amount to- 

 gether to 50 feet ; the difference being only one foot. 



The coincidence seems to me very significant. However variable 



* This represents the marly bed, the " Stamford Stone," of Squires's quarry. 



