German Black Bread Recipe
This recipe comes from the official record from the Food Providing Ministry published (Top Secret) Berlin, 24 November 1941 and the Director in Ministry Herr Mansfeld and Herr Moritz.

50% bruised rye grains
20% sliced sugar beets
20% tree flour (saw dust)
10% minced leaves and straw

From our own experience with the black bread, we also saw bits of grass and sand.  Someone was cheating on the recipe.

Joseph P. O'Donnell
Robbinsville, New Jersey