1890.] on the Search for Coal in the South of England, 



181 



rocks were witbin such easy reach at Dover, that they could be 

 utilised for the making of a submarine tunnel. Sir Edward Watkin 

 acted with his usual energy, and the work was begun in 1886, and 

 has been carried on down to the present time, under my advice, and 

 at the expense of the Channel Tunnel Company. The boring 

 operations have been under the direction of Mr. F. Brady, the Chief 

 Engineer of the South-Easteru Eailway, to whose ability we owe the 

 completion of the work to its present point, under circumstances of 



Fig. 1. 



OliaXk. 



GavXt. 



L. Greensand 

 ^M Oolite. 



Coal^reasiirc.'f. 



A Boring. 



^.Channel Tunnel Shaft. 



Boring at Shakespeare Cliff. 



great difficulty. A shaft has been sunk (A) [See Fig. 1] on the 

 west side of the Shakespeare Cliff, close to the shaft of the Channel 

 Tunnel (B) to a depth of 44 feet, and from this a bore-hole has been 

 made to a depth of 1180 feet. 



Section at Shakespea-re Cliff, Dover. 



Feet. 



Lower grey chalk, and chalk marl ^ 



Glaiiconite marl .. I kaq 



Gault I 



Neocomian = j 



Portland iau "j 



Kimmeridgian I 



Corallian V fjp q 



Oxfordian .. f 



Callovian I 



Bathonian ) 



Coal measures, sandstones, and shales and clays, ) -q 

 with one seam of coal f 



