_"4th September, 1814._--Waked in the morning with good hope of hearing service in Derry Cathedral, as we had felt ourselves under weigh since daylight; but these expectations vanished when, going on deck, we found ourselves only halfway up Lough Foyle, and at least ten miles from Derry. Very little wind, and that against us; and the navigation both shoally and intricate. Called a council of war; and after considering the difficulty of getting up to Derry, and the chance of being wind-bound when we do get there, we resolve to renounce our intended visit to that town. We had hardly put the ship about, when the Irish Æolus shifted his trumpet, and opposed our exit, as he had formerly been unfavorable to our progress up the lake. At length, we are compelled to betake ourselves to towing, the wind fading into an absolute calm. This gives us time enough to admire the northern, or Donegal, side of Lough Foyle--the other being hidden from us by haze and distance. Nothing can be more favorable than this specimen of Ireland.--A beautiful variety of cultivated slopes, intermixed with banks of wood; rocks skirted with a distant ridge of heathy hills, watered by various brooks; the glens or banks being, in general, planted or covered with copse; and finally, studded by a succession of villas and gentlemen's seats, good farmhouses, and neat white-washed cabins. Some of the last are happily situated upon the verge of the sea, with banks of copse or a rock or two rising behind them, and the white sand in front. The land, in general, seems well cultivated and enclosed--but in some places the enclosures seem too small, and the ridges too crooked, for proper farming. We pass two gentlemen's seats, called White Castle and Red Castle; the last a large good-looking mansion, with trees, and a pretty vale sloping upwards from the sea. As we approach the termination of the Lough, the ground becomes more rocky and barren, and the cultivation interrupted by impracticable patches, which have been necessarily abandoned. Come in view of Green Castle, a large ruinous castle, said to have belonged to the MacWilliams. The remains are romantically situated upon a green bank sloping down to the sea, and are partly covered with ivy. From their extent, the place must have been a chieftain's residence of the very first consequence. Part of the ruins appear to be founded upon a high red rock, which the eye at first blends with the masonry. To the east of the ruins, upon a cliff overhanging the sea, are a modern fortification and barrack-yard, and beneath, a large battery for protection of the shipping which may enter the Lough; the guns are not yet mounted. The Custom-house boat boards us and confirms the account that American cruisers are upon the coast. Drift out of the Lough, and leave behind us this fine country, all of which belongs in property to Lord Donegal; other possessors only having long leases, at sixty years, or so forth. Red Castle, however,