He published Glaubenlose Religion (Religion without belief) in 1930 although it did not appear under his own name, rather under the pseudonym F H Marneck.
Siya nai-publish Glaubenlose Relihiyon (Religion walang paniniwala) sa 1930 bagama't ito ay hindi lilitaw sa ilalim ng kanyang sariling pangalan, sa halip sa ilalim ng sagisag-panulat FH Marneck.