 He was editor of "Katalog der batrachier- Sammlung im Museum der Senckenbergischen naturforschenden Gesellschaft in Frankfurt am Main" as well as "Katalog der Reptilien- Sammlung im Museum der Senckenbergischen naturforschenden Gesellschaft in Frankfurt am Main", both catalogs being issued by the Senckenberg Museum.Also, he was co-author of the herpetology volume for the third edition of Alfred Brehm's "Tierleben".During the latter stages of his career he taught classes at the Wöhler-Realgymnasium in Frankfurt and also engaged in some foreign travel.