Der Obstzüchter
- 1.1903 California-USA* = Google
- 2.1904 California-USA* = Google
- 3.1905 California-USA* = Google
- 4.1906 California-USA* = Google
- 5.1907 California-USA* = Google
- 6.1908 California-USA* = Google
- 7.1909 California-USA* = Google
- 8.1910 California-USA* = Google
- 9.1911 California-USA* = Google
- 10.1912 California-USA* = Google
- 11.1913 California-USA* = Google-USA* = Internet Archive
- 12.1914 California-USA* = Google-USA* = Internet Archive
- 13.1915 California-USA* = Google-USA* = Internet Archive
- 14.1916 California-USA* = Google-USA* = Internet Archive
- 15.1917 California-USA* = Google-USA* = Internet Archive
- 16.1918 California-USA* = Google-USA* = Internet Archive
- 17.1919
- N.F. 1.1921[?]