The death of Mr. Rowcroft, in Peru, caused infinite regret amongst the British in Buenos Ayres, by whom he was much respected. He was, probably, the first alderman of the city of London that ever crossed the Andes. It was hard to meet his death by the bullets of foreign soldiery. It is some consolation, that accident alone caused the fatal affair. It is said, that he was taken for a Spanish officer, Mr. R. being clothed in his uniform as Colonel of the City Light Horse, a dress he appeared particularly proud of. A son of Sir Robert Wilson arrived here, and went to Peru; but he soon returned, and went to the Brazils, in order to join his father's friend, Lord Cochrane. Amongst my countrymen in this city, may be found some very eccentric characters, who would be accounted originals even at home. Who has visited Buenos Ayres without having heard of the noisy drunken Englishman, Jack Hall, the Caleb Quotem of the town, and who, in appearance and dress, looked as if he had just escaped from Newgate. Poor Jack died in July, 1824, and was carried to the grave in his own cart, which had, for a series of years, borne so many of his countrymen to their last abode, and on that account was called "the English hearse." Hall was a Jack of all trades, painter, glazier, whitewasher, &c. &c. The Spaniards, when he first arrived amongst them, viewed him as a prodigy. Irishmen naturalized into American citizens, or what are called "Irish Yankies," from time to time pass through Buenos Ayres, on their route to different parts: I have known several. It is heart-rending to think, that political events should thus have estranged men from their native country, and made them its bitterest enemies. It is true, they "rail against a rock they cannot pull down." If an excuse can be found for them, it is that the hopes of their youth have been blighted, and that oppression has made them aliens to their native land. North Americans remark, that those who abuse Great Britain most in the United States are our own countrymen. I believe it; and in the falsification of their long-told predictions of England's downfall, there is a wider field opened for their hate, and to brood upon what is to happen to ill-fated England.