62 IN STARRY REALMS. 



respond to tidal impulse. There is, therefore, in all 

 probability, no longer any actual tidal control. On the 

 other hand, however, there is nothing to disturb the 

 adjustment. It was, as we have seen, caused by the tides 

 which have done their work ; the consequences of that 

 work are still exhibited in the constant face of the 

 moon, which, now that it has been brought about, seems 

 likely to exist permanently aa a stable adaptation of 

 the movement. 



