Humboldt, Alexander Von <br/><br/>
Letters of Alexander Von Humboldt: Written Between the Years 1827 and 1858, to Varnhagen Von Ense; Together With Extracts from Varnhagen's Diaries, and Letters from Varnhagen and Others 

 -  Cambridge University Press 
<br/><br/><label>ISBN: </label>9781108004619 
<br/><br/><label>Dewey Class. No.: </label>509.2 HUM