Mach, Ernst, 1838-1916Alternative names
Austrian physicist and philosopher.
From the description of Autograph letter signed : Prague, to Wilhelm von Beetz, 1876 July 11. (Unknown). WorldCat record id: 270606981
No letterhead; sent from Vienna.
From the description of Typed form letter, signed, 1911. (Unknown). WorldCat record id: 122546275
- Bohemia (Czech Republic) (as recorded)
- Czechoslovakia (as recorded)