THE TIDES. 



as the action of the sun is still more feeble, there is a still greater 

 interval between the transit of the sun and the occurrence of the 

 solar tide. 

 But besides these circumstances, the tide is affected by other 



Fig. 2. 



Fig. 3. 





It is not the separate effect of either of these bodies, 

 but the combined effect of both, and at every period of the 

 month, the time of actual high water is either accelerated or 

 retarded by the sun. In the first and third quarters of the 

 136 



