Books by Karl Heckel:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Heckel, Karl, 1858-1923: Briefe Richard Wagners an Emil Heckel (S. Fischer, 1899), also by Richard Wagner and Emil Heckel (page images at HathiTrust)- Heckel, Karl, 1858-1923: Hugo Wolf in seinem Verhältnis zu Richard Wagner (G. Müller, 1905) (page images at HathiTrust)
- Heckel, Karl, 1858-1923: Letters of Richard Wagner to Emil Heckel: with a brief history of the Bayreuth festivals. (G. Richards, 1889), also by William Ashton Ellis and Richard Wagner (page images at HathiTrust)
- Heckel, Karl, 1858-1923: Nietzsche, sein Leben und seine Lehre. (Philipp Reclam, jun., 1922), also by Alfred Bäumler (page images at HathiTrust)
- Heckel, Karl, 1858-1923: Nietzsche, sein Leben und seine Lehre (in German) (Gutenberg ebook)
- Heckel, Karl, 1858-1923: Richard Wagner-Gedenkfeier (J. Bensheimer, 1883) (page images at HathiTrust)
Find more by Karl Heckel at your library, or elsewhere.