The Spener’sche Zeitung contains the following communication from the pen of Alexander von Humboldt: — “The friendship of many years’ standing, with which I am honoured by Sir Woodbine Parish (the excellent author of the description of the provinces of Rio de la Plata), has just transmitted to me the sad news of the death of my dear American fellow-traveller. Aimé Bonpland, according to the newspapers of Buenos Ayres, died on the 4th of May, in the province of Corrientes. The inhabitants of that province, as well as the British community of Buenos Ayres, announce their intention to erect a monument to the gifted, industrious, and bold naturalist.”