written by agriculturalist Fritz Sattler and
Eckard von Wistinghausen, Ph.D. Sci. Agr.
Originally published in 1989 by Eugen Ulmer GmbH & Co.,
Stuttgart, Germany
Re-published in English by Bio-Dynamic Agricultural Association
Goethean House, Woodman Lane, Clent, Stourbridge,
West Midlands, DY9 9PX, UK
Translated by A.R. Meuss 1992