Before revision: German dominance in the field of physiology was underlined by the publication of the definitive textbook on plant physiology synthesising the work of this period, Sachs' e of 1882.
After revision: German dominance in the field of experimental physiology, largely influenced by Wilhelm Knop and Julius von Sachs, was underlined by the publication of the definitive textbook on plant physiology synthesising the work of this period, Sachs' e of 1882.