50 The Rev. S. Haughton on the Solar and Lunar 



VII. Portrush, Co. Antrim. 



Lat. 55° 12' N. Long. Q° 38' W. 



The tide-gauge was erected in an angle of the northern pier, 

 close to the spot in which the tidal observations were made in 

 1842. It was referred to the copper bolt driven vertically into 

 one of the facing-stones of the quay, and its zero was found to 

 be 12*58 feet below this bolt. 



VJII. Cushendall, Co. Antrim. 

 Lat. 55° 4' N. Long. 6° 4' W. 



The tide-gauge at this station was erected on the landward 

 side of the new pier in Red Bay. 



The zero of the gauge was referred to the Ordnance bench- 

 mark on the top of the wall, at the road side, north of the 

 tunnel, above the pier ; it was found to be 34'74 feet below this 

 mark. 



IX. Donaghadee, Co. Down. 

 Lat. 54° 38' N. Long. 5° 33' W. 



The tide-gauge was erected beside the pier, close to the copper 

 bolt driven vertically into one of the facing-stones of the quay, 

 in a sheltered position, and with deep water at the lowest tides. 



The zero of the gauge was 19*80 feet below this bolt. 



X. Kingstown, Co. Dublin, 

 Lat. 53° 17' N. Long. 6° 8' W. 



The gauge was placed in the inner angle of the new harbour, 

 and was well sheltered from all points, particularly the north- 

 east, from which direction large waves often enter Kingstown 

 harbour. 



Its zero was referred to the copper bolt in the coping-stone of 

 the pier near the water-tank, and found to be 18*28 feet below 

 this bolt. 



XI. Courtown, Co. Wexford. 

 Lat. 52° 40' N. Long. 6° 12' W. 



Some difficulty was found at this station in selecting a suitable 

 position for the tide-gauge, in consequence of the harbour having 

 become partially filled witli sand and gravel forced into it by the 

 sea. The gauge was placed beside the wooden landing-stage in 

 the open sea, in rather an exposed position. 



Its zero was found to be 17*13 feet below the copper bolt 

 driven vertically into one of the facing-stones of the entrance to 

 the harbour. 



