ON THE CIBCDLATION OF UNDERGROUND WATERS. 



313 



Thames Basin. 



Contains 931 square jniles of Oolitic strata. 



Cirencester. — From Messrs. Bowly & Son, sunk and comnmnicated by 

 Messrs. Legrand and Sutcliff to Mr. Wiiitaker. 



ft. 



Gravel 12 



Sand 2 



Brown clay . . . . . . . -1^ 



. Fojrest marble £musj; include otjier oplitic beds] , . 114 



• 1291 

 Hants Bhsin. ' 



Eiver Avon . _ 18 \ square miles 



y Stour. , . , . . '. '.120/ o| Oolite. .' 

 Population of this group about 1 million. 



West of England Streams. 



434 



Clifton, near'Bughy. — For Mr. Miintz. Siink, and" communicated by 

 Messrs. Legrand & Sutcliff tQ Mr. W}iitaker. 



Sand . 

 i^lue.clay 

 Clay and sand 

 Light blue clay 

 Dark blue clay 

 Clay and sand 



feet 

 3 



in 



H 



7 



37 



5 



