Autograph letter signed : Leipzig, to Wilhelm von Beetz, 1873 Oct. 16.
Related Entities
There are 2 Entities related to this resource.
Beetz, Friedrich Wilhelm Hubert von, 1822-1886,
http://n2t.net/ark:/99166/w6pc3d8h (person)
Feddersen, Berend Wilhelm, 1832-1918
http://n2t.net/ark:/99166/w6481p7m (person)
German physicist. From the description of Autograph letter signed : Leipzig, to Wilhelm von Beetz, 1873 Oct. 16. (Unknown). WorldCat record id: 270523107 ...