48 W. WHITAKER ON SOME EOEIJSTGS EST KENT. 



Measures would be found in the South-east of England, or whether 

 it would be of any advantage if they were found. 



Mr. Creswick felt some doubt whether the Ui^i^er Greensand was 

 not present as a very thin bed, only 1 ft. 6 in. thick, in the Chatham 

 well. He thought that the Oxford Clay might be a little thicker 

 than shown in the section. An ample supply of water was obtained 

 from the small bore first put down ; but the second and larger boring 

 was a complete failure ; for the supply of 115,000 gallons per day 

 was not increased in the well. The temperature of the water at 

 Chatham showed a rise of 1° Pahr. for every 57| feet of descent, 

 after allowing for the mean aunual temperature. The water over- 

 flowed in a stand-pipe at the height of 19 ft. from the surface. 



The Author said that Mr. Daltoni had just told him of the 

 magnetization of the boring-tubes at the Scarle boring. The bottom 

 bed of the Chalk often contains green sand, so as to have been 

 classed as Upper Greensand. 



