372 Rev. W. B. Clarke on the Geological Structure 



No. 10. Bedham Gun Hill, (ascending series) 2-^ miles from East Berg- 

 holt, to the S.W. (ascending order). 



Feet. 



London clay — floor of Toll-gate house above river, about 20 



Crag makes its appearance above the level of the floor of the Toll-house, on the 



side of the hill, about 30 



Crag 20 



Diluvium — gravel and sand, to top of field above the Gun inn 36 



Total.. 106 



No. ] 1. Well at Mr. Downes' residence, near the Lamb inn, Dedham, 

 about the level of No. 10. This is an approximation only by levelhng, but it 

 agrees with the general level of the London clay and crag, &c., on the Suffolk 

 side of the Stour, as may be seen by comparing this section with the well. 

 No. 8., and the level of the chalk, &c., at Shelley, No. 16. 



The level of the river at the Toll-gate, is about 14 feet above the salt-water 

 bed. 



Ft. In. Ft. In. 



1 . Diluvium — earth (provincially Calerer) .... 1 6 



2. gravel 1 



S. brown clay 5 



4. gravel 1 



5. red sand 1 3 



6. dark grey sand (land spring) . . 3 



7. gravel .- 3 



10 3 



8. London blue clay (left off) 10 



Total.. 20 3 



No. 12. Wells at Pig Lane, Dedham. 



1. Surface beds, from 16 to 60 feet. 



2. London clay 28 to 37 feet. 



No. 13. Brick-kiln pits, Higham Bridge, near the junction of the Bret 

 and Stour rivers, 2 miles to the N.W. of Dedham. 



1. Upper part of hill, gravel and sand, apparently belonging to the crag formation. . 10 feet. 



2. London blue clay 70 to 100 feet. 



