76 



The Rev. Samuel Haughton on the Solar and Lunar 



Rathmullan Table F. 



Difference of Observed and Calculated Times of Vanishing of Diurnal Tide at RathmuUan, at Low 



Water, expressed in Lunar Days. 

 Age of Lunar Tide = 4'' 20*. 



Although the agreement between the Observed and Calculated Tides, shown 

 by the preceding six Tables, is not so close as in some of the other Stations, yet 

 it is sufficiently so to warrant us in relying upon the Tide Constants here de- 

 termined, as close approximations to the truth. 



Section VII. — Divrnal Tide at Portrush. 



