Notices and Extracts from the Minutes of the Geological Society. J 33 



the vicinity of Horsham. Mr. Lyell has favoured tne with the following sec- 

 tion and description of a quarry at Stammerham, near that town. 



"Section of Stammerham Quarry, near Horsham. 



Provincial Terms. Thickness. 



1. Vegetable mould 1 foot 6 inches. 



2. Stiff clay and loam 9 feet. 



3. Compact calciferous sandstone, with deep "^ 



undulating furrows on the upper sur. ? Rough Causeway . 4 inches. 



face -' 



4 & 5. The same rock, but more indurated, 



in two layers ; the upper four inches, 

 the lower one twelve inches thick : (an 

 excellent road material) 



T 



Scrub Stone ... 1 foot 4 inches. 



6. Ferruginous sandstone (pulverized for^ , f x 



bricks) j 



7. A blue soapy marl ^a '"ot* 



8. Ferruginous sandstone, like No. 6. . 1 foot* 



9. Hard calcareous sandstone, used for roads I Ground Pinning.stone. 1 foot. 



and rough paving j 



10. Compact calciferous sandstone, of finer~ 



texture than any of the above. It oc. 



curs in large slabs, and forms an excel- . 2 fpgt 



lent paving material for kitchens, «&c. { 



It is slightly marked with undulating | 



furrows on the upper surface . . .J 



11. Marl sunk through, but not worked 4 feet. 



12. Stone in slabs, reached by boring depth unknown. 



"In the calciferous sandstone. No. 10, according to the report of the work- 

 men, the bone of an animal was discovered some years since : organic re- 

 mains, however, appear to be rare. No shells occur ; but branches of vege- 

 tables in a carbonized state are often met with. The quarry at Tower Hill, 

 near Stammerham, so nearly resembles the latter, that it is unnecessary to 

 describe it. Near this an incrusting spring rises, which covers the vege- 

 tables in the ditches through which it flows, with calcareous tufa. 



In the quarries at Sedgwick, 2 miles from Stammerham, Mr. Lyell 

 observed a large quantity of slabs of paving-stone, many of which were 

 deeply furrowed on both sides. This appearance is common in the sand- 

 stone throughout Sussex, and appears to have been formed by the advance 

 and retrocession of the waves. 



The dip of the strata near Horsham is very variable : in some instances it 



