THE TIDES. (APP. B.) 201 



The phenomena of underground temperature, 

 which led geologists to that supposition, are 

 explained otherwise than by their assumption of a 

 thin shell full of liquid ; and further, every view 

 we can take of underground temperature, in the 

 past history of the earth, confirms the statement 

 that we have no right to assume interior fluidity. 



APPENDIX B. 



INFLUENCE OF THE STRAITS OF DOVER ON THE 

 TIDES OF THE BRITISH CHANNEL AND THE 

 NORTH SEA. 



[Abstract of a paper read at the Dublin (1878) meeting 

 of the British Association.'} 



THE conclusions are : 



I. The rise and fall of the water-surface and 

 the tidal streams throughout the North Sea, north 

 of the parallel of 53 (through Cromer, in Norfolk), 

 and on the north coasts of Holland and Hanover, 

 are not sensibly different from what they would be 

 if the passage through the Straits of Dover were 

 stopped by a barrier. 



2. The main features of the tides (rise and fall 



