From 1922 to 1950 he taught classes in Romance philology and Old French literature at the University of Zürich.[1] With Karl Jaberg, he was the author of Sprach- und Sachatlas Italiens und der Südschweiz (8 volumes, 1928–40).[2] In 1936, with Arnald Steiger, he founded the magazine Vox Romanica.[3]