At this school he also held positions as associate professor of education and director of teacher training.

In 1858 he became professor of zoology and director of the museum there.

In 1828 he was made professor of painting and director of all the art collections at Munich.

In 1827 he was appointed professor of anatomy and director of the anatomical institute.

Her father is a professor of psychology at Columbia and director of the psychophysics laboratory.

In 1858 he was appointed professor of physics and director of the observatory at Bern.

He served as professor of space law and director of space studies and policy from 1981 until his retirement in 1998.

From 1886 to 1920 he served as a professor of internal medicine and director of the university polyclinic in Leipzig.

In 1860 he relocated to Jena as a professor of special pathology and director of the medical clinic.

In 1884 he was appointed professor of hygiene and director at the institute of hygiene.