A room for a lab allows students of medicine, pharmacy and philosophy to participate in practical exercises. Laboratory of Chemistry . After the death of Redtenbacher, Franz Schneider is his successor as the head of the I. Laboratory. Laboratory and, the next year, of Ludwig Barth to the head of the I. Laboratory, the era of organisation and consolidation ends and one of intense research begins. Rudolf Wegscheider becomes head of the I. Laboratory.
Laboratory stays organic chemistry.
It is the home of the Chemistry Institutes up to now. The focus of his work is on phytochemistry. In the early 30ies, the number of assistants at the two Institutes has risen to approximately 35. Hermann Mark becomes a promising successor of Wegscheider, but his carreer is stopped 1938. With the begin of the Nazi dictatorship, many scientists and students are fired for racial and political reasons.