4 MR. AIRY ON THE LAWS OF THE TIDES 



3. Foynes Island. — An island in the Shannon, about fifteen miles above Kilrush ; 

 latitude 52° 37', longitude 9° 9'. The gauge was a pole in the narrow channel on the 

 south side of the island. 



4. Limerick. — The tide-gauge was on the face of Mead's Quay, the lowest (on the 

 course of the river) of the quays at Limerick ; latitude 52° 38', longitude 8° 39'. 



5. Casleh Bay. — A small bay in the north side of Gal way Bay, near its entrance ; 

 latitude 53° 14', longitude 9° 34'. The tide-gauge was a pole in the water near the 

 Coast-Guard Station. 



6. Gal way. — The tide-gauge was nailed to the pier, at the entrance to the New 

 Dock; latitude 53° 17', longitude 9° 2'. 



7. Old Head. — A station on the south side of Clew Bay ; latitude 53° 47', longi- 

 tude 9° 47'. The gauge was at first nailed to a small quay ; it was afterwards fixed 

 in the water. 



8. Mullaghmore.— A station on the south side of Donegal Bay; latitude 54° 27', 

 longitude 8° 26'. The gauge was nailed to the south pier of a small port called 

 Classybaun Harbour. 



9. Buncrana. — A station on the east side of Lough Swiily, about ten miles from its 

 mouth ; latitude 55° 8', longitude 7° 27'. The gauge was fixed in the water, opposite 

 to a fortress 'called Ned's Point Battery. 



10. Port Rush. — A small harbour near the entrance of Lough Foyle; latitude 

 55° 11', longitude 6° 40'. The gauge was nailed to the northern pier. 



11. Carrowkeel. — A station on the western side of Lough Foyle, about twelve 

 miles from its mouth ; latitude 55° 7', longitude 7° 1 !'• The gauge was nailed to a 

 large post permanently fixed in the water. 



12. Ballycastle. — A small port opposite Rathlin Island ; latitude 55® 12', longitude 

 6° 14'. The gauge was a pole in the water. 



13. Glenarm. — A small port between Ballycastle and Belfast; latitude 54° 56', 

 longitude 5° 56'. The gauge was nailed to the pier. 



14. Donaghadee. — Latitude 54° 39'^, longitude 5° 32' ; near the south side of the 

 entrance to Belfast Lough. The gauge was nailed to the pier. 



15. Ardglass. — A small harbour opposite to the Isle of Man; latitude 54° 15', 

 longitude 5° 35'. The gauge was nailed to the pier. 



16. Clogher Head. — A headland a few miles north of Drogheda ; latitude 53° 48', 

 longitude 6° 14'. The observations were made at a small harbour called Port Oriel, 

 on the north side of the Head, but very near to it. The gauge was nailed to the 

 pier. 



17. Kingstown. — The harbour on the south side of Dublin Bay; latitude 53° 18', 

 longitude 6° 9'. The gauge was nailed to the wharf, on the landward side of the 

 harbour. 



18. Courtown. — A small harbour ; latitude 52° 38', longitude 6° 14'. The gauge was 

 nailed to the wall of a canal which forms the opening from a small river into the sea. 



