Before revision: German metallurgists in search of rich precious metal ores, for instance, took the lead in mining and affected the course of metal production, not only in East and South Germany but in almost all Central Europe and the Eastern Alps.
After revision: ofGerman metallurgists in search of rich precious metal ores, for instance, took the lead in mining and affected the course of metal production, not only in East and South Germany but in almost all Central Europe and the Eastern Alps.