Of all Americans who ever visited Europe, Mr. Cooper contributed most to our country's good reputation. His high character made him every where welcome; there was no circle, however aristocratic or distinguished, in which, if he appeared in it, he was not observed of all observers; and he had the somewhat singular merit of _never forgetting that he was an American_. Halleck, in his admirable poem of Red Jacket, says well of him: COOPER, whose name is with his country's woven, First in her fields, her pioneer of mind, _A wanderer now in other lands, has proven_ _His love for the young land he left behind._ After having been in Europe about two years he published his _Notions of the Americans_, in which he "endeavored to repel some of the hostile opinions of the other hemisphere, and to turn the tables on those who at that time most derided and calumniated us." It contained some unimportant errors, from having been written at a distance from necessary documentary materials, but was altogether as just as it was eloquent in vindication of our institutions, manners, and history. It shows how warm was his patriotism; how fondly, while receiving from strangers an homage withheld from him at home, he remembered the scenes of his first trials and triumphs, and how ready he was to sacrifice personal popularity and profit in defence of his country. He was not only the first to defend and to praise America, but the first to whom appeals were made for information in regard to her by statesmen who felt an interest in our destiny. Following the revolution of the Three Days, in Paris, a fierce controversy took place between the absolutists, the republicans, and the constitutionalists. Among the subjects introduced in the Chambers was the comparative cheapness of our system of government; the absolutists asserting that the people of the United States paid more direct and indirect taxes than the French. La Fayette appealed to Mr. Cooper, who entered the arena, and though, from his peculiar position, at a heavy pecuniary loss, and the danger of incurring yet greater misfortunes, by a masterly _expose_ silenced at once the popular falsehoods. So in all places, circumstances, and times, he was the "_American_ in Europe," as jealous of his country's reputation as his own.