328 POPULAR LECTURES AND ADDRESSES. 



We have here (Fig. 4) a globe. Suppose that 

 somehow or other a portion of ice was placed 

 on the Antarctic continent, what would be the 

 result ? It would be that the polar ice-cap would 

 attract the water so that the water which stood 

 at a certain height before that transference was 



made, would be drawn up to a higher level all 

 round the Antarctic continent by the attraction 

 of this mass of ice. The calculation for the result 

 is merely a piece of mathematical book-keeping 

 with which I need not trouble you. 



There is just one other point which belongs to 

 further explanation of Laplace's theory. That first 



