124 MR. AIRY ON THE LAWS OF THE TIDES ON THE COASTS OF IRELAND. 



The diurnal tide is here shown pretty well, and the times of its changes of sign agree 

 well with those found in Section III. But the numbers for tertio-diurnal tide appear 

 to me perfectly lawless. I think that they must be regarded as principally the effects 

 of accident. 



On the whole, I am inclined to believe that, as far as evidence goes, the tertio- 

 diurnal tide is not sensible on the coast of Ireland. 



