and PhcEnomena of the County of Suffolk. 373 



Pit 2. 



Feet. 



1. Earth 4 



2. London clay — thick clay with limestone (effervescing) 7 



3. Plastic clay — brownish clay with clay nodules and vegetable impres- 



sions ; it does not effervesce 29 



4. sand, white as silver, very fine, with argillaceous 



flakes 2 to 6 



5. black clay, like pitch 2 



6. sand 2 to 4—41 



Total.. 52 

 Brown clay with ochreous concretions, depth unknown. 



N.B. Strata horizontal ; no fossils, and only a few rounded siliceous pebbles 

 in lower beds. 



No. 14. Mr. Harris's well, Higham Hill. 



Feet. Feet. 



1. Gravel 10 



2. Sand 20 



• 30 



3. London clay ., 10 



Total.. 40 

 Sand. Water strongly impregnated with sulphur, and useless. 



No. 15. Wells at Holton, I4 miles N.E. from Higham. 



Feet. 



1. Holton Hall Well, diluvial clay and chalk stones 40 



2. do. Rectory do., do. 42 



No. 16. Chalk-pit near Shelley Church (west side of the ravine), about 

 2+ miles south of Hadleigh. 



Ft. In. 



1 . Vegetable mould r 5 



2. Plastic clay — chalky clay 1 



3. white clay 1 8 



4. ochreous yellow clay, containing large oetites 2 



5. greenish clay, dotted with fuller's earth 4 



6. reddish loam 2 



7. hard bluish clay, with green particles, and siliceous pebbles 2 6 — lo 2 



8. Chalk, very watery, containing large flints, to level of river I 



Total ..19 2 

 All the beds of plastic clay curved up to the north-west. 

 Assuming- that the level of the Bret is about 23 feet above the salt-water at 

 Cattawade, we find that the chalk slopes about 93 feet to Harwich, or rather 



3 c 2 



