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spring tides. So far as position is concerned, this is one of the 

 most important stations on the west coast. The time at noon is 

 found from a brass vertical gnomon, erected in the garden of the 

 chief boatman's house. 



No meteorological observations are taken at this station. 



Kilrush (Co. Clare). — The importance of having as many tidal 

 stations as possible on the west coast, induced the Committee of Sci- 

 ence to undertake the erection of a tide-gauge at Kilrush, although, 

 from its being so far up the Shannon, the station was not as valuable as 

 could be wished. The only place in which the gauge could be erected 

 was at the extremity of the stone pier, facing the river, and conse- 

 quently exposed to violent gales from the south-west. During the 

 first few weeks of its existence it was twice washed away by the 

 violence of the waves. The zero of the tide-gauge is 2059 feet 

 below the bench-mark at the pier-head. The time at noon is found 

 by a gnomon attached to the flag-staff near the guard-house. 



The meteorological instruments are erected in the guard-house 

 of the station, and are in charge of the chief boatman. The cistern 

 of the barometer is 6*4 feet above the bench-mark. The diameter 

 of the tube is 32 of an inch. 



Cahirciveen (Co. Kerry). — The tide-gauge at this station is 

 placed in an angle above the bridge, in a very sheltered situation, 

 and having the advantage of deep water at the lowest tides. The 

 only objection to its position is that it is not situated on the open 

 sea, and the tide at Cahirciveen must be considered as a river tide. 

 There is no Ordnance bench-mark at this station. A provisional 

 mark was therefore placed on the corner coping-stone of the bridge; 

 and the zero of the tide-gauge was found to be 23-51 feet below it. 



The barometer is erected in the house of the officer of the station, 

 in the town of Cahirciveen, and the thermometers and rain-gauge in 

 the garden attached to it. Their site is not very favourable. The 

 cistern of the barometer is 370 feet above the mark on the bridge. 

 The diameter of tube is 0'38 of an inch. The brass vertical gnomon, 

 for finding the time at noon, is placed on the sill of a window of the 

 officer's house. 



Casteetownsend (Go. Cork). — The tide-gauge at this station is 

 in an excellent position, although rather exposed. It is erected in 

 the open sea, and is held in its place by guys and chains which are 



VOL. V. H 



