Diurnal Tides of the Coasts of Ireland, 49 



II. Cahei'civecn, Co. Kerry. 



Lat. 51° 57' N. Long. 10° 8' W. 



The zero of the tide-gauge, which was erected m the N.E. 



angle above the bridge, was referred to a provisional bench-mark 



made on the corner coping-stone of the bridge. The zero was 



23"51 feet below this mark. 



III. Kilrush, Co. Clare. 

 Lat. 5.2° 38' N. Long. 9° 26' W. 



The tide-gauge was placed at this station on the sea-face of the 

 steam-boat pier, and consequently exposed to the gales from the 

 S.W. This was the only position in which it could be placed, 

 and unfortunately it was twice washed away by the violence of 

 the waves. 



The zero was referred to the copper bolt driven vertically into 

 one of the facing-stones of the piei-, and w^as found to be 20*59 

 feet below this bolt. 



IV. Bunown, Co. Galway. 

 Lat. 53° 24' N. Long. 10° 2' W. 



The tide-gauge at this station was erected at the inner side of 

 the new pier built for the accommodation of fishing-boats, and 

 was well sheltered from the west and south-west. 



V. Killibegs, Co. Donegal. 

 Lat. 54° 38' N. Long. 8° 24' W. 



Owing to the impossibility of erecting a tide-gauge at this 

 station in a position which would not be left dry at low \vatei", it 

 was determined to dispense with the daily observations, and to 

 make the weekly observations with two tide poles, one of which 

 was fixed to the pier near the Coast-guard house, and the other 

 on a rock at a short distance from the shore, the latter being 

 used only when the base of the pier was dry at low water of 

 spring tides. The correspondence of the figures on the two 

 poles was carefully verified. 



The zero of the tide-pole was 18-00 feet below the coping- 

 stone of the pier to which it was fastened. 



VI. Rathmullan, Co. Donegal. 

 Lat. 55° 7' N. Long. 7° 32' W. 

 The tide-gauge was erected in a sheltered situation at the 

 inner side oi' the pier. 



Its zero was 20-20 feet below the upper surface of the corner 

 coping-stone at the southern end of the pier. 



Phil. May. S. 4. Vol. 11. No. 69. Jan. 1856. E 



