I send you an extract from a letter written by Sismondi to a friend of mine respecting the Emperor Napoleon, of whom he was formerly a great enemy, but to whom he became a sincere convert after his return in March last. His account in some respects is curious; and distinctly confirms what we have heard before of the change that has lately taken place in Buonaparte’s constitution and physical powers—in fact, a sort of premature old age.2