Humboldt’s gift
The Prussian naturalist Alexander von Humboldt was once the most famous man in Europe bar Napoleon. And if you judge a man by his friends (as you should), how about Goethe, Schiller, Simon Bolivar, Cuvier, Lamarck, Laplace, Guy-Lussac and Jefferson? And that is only the start of the supper list. So what happened? Why is