95 



meter tube is 028 of an inch. The time, at noon, is taken from a 

 brass vertical gnomon, erected on the sill of the guard-house win- 

 dow, facing the south. 



Dunmore East (Co. Waterford) — The tide-gauge at this station 

 is erected in an angle of the pier, by which it is sheltered from the 

 large waves which enter the mouth of Waterford Harbour from the 

 south and south-west ; it is also protected by a strong chain from 

 the injuries which might be caused by the accidental rubbing of 

 the large fishing-boats which frequent Dunmore Harbour. Al- 

 though the water is not very deep, there is sufficient depth at 

 spring tides to secure the accuracy of the observations recorded by 

 the instrument. The zero of the tide-gauge is 17*34 feet below the 

 bench-mark on the pier. 



The meteorological instruments are erected at the guard-house 

 of the station, which is at a higher elevation than the tide-gauge ; 

 the cistern of the barometer being 554 feet above the bench-mark. 

 The diameter of the tube is 032 of an inch. The time at noon 

 is found by means of a brass vertical gnomon erected in the window 

 of the guard-house. 



West Coast Stations. 



Buncrana (Co. Donegal). — The tide-gauge was at first erected 

 at Buncrana, attached to a rock near the mouth of the river, by 

 means of iron stanchions ; but, on inspection, the site was found 

 to be wholly unsuitable. The instrument was, therefore, with the 

 consent of the inspecting commander of the station, removed to 

 Rathmullan, at the opposite side of Lough Swilly, where it is 

 erected in a good situation, at the head of the pier. A hurricane 

 house has been fixed on the pier, for the shelter of the observer. 

 The meridian line is laid down to the north of the coast-guard flag- 

 staff. 



The meteorological instruments are put up at the guard-house 

 at Buncrana, in charge of the chief boatman ; the site is not as fa- 

 vourable as could be wished. The height of the cistern of the 

 barometer above high water (spring tides) is forty feet. The diame- 

 ter of the tube is 0"34 of an inch. 



Killybegs (Co. Donegal). — Much difficulty was experienced 



