Diurnal Tides of the Coasts of Ireland. 



117 



Portrush Tide, Table B. 



Negative heights at high water for fifteen hanations, commencing 

 1850,November7'i7'i45°i,andendingl85l,December22<i5ii35™. 



Portrush Tide, Table C. 



Positive heights at low water for fifteen lunations, commencing 

 1850, November 6^ 15^^ 24P^, and ending 1851, December 

 21d 161^ SO-^. 



Portrush Tide, Table D. 

 Negative heights at low water for fifteen lunations, commencing 

 1850, November 6^ 15*^ 24'n, and ending 1851, December 

 21'! 161^ SO-n. 



