"His greatest contributions to the academic world – proof of Continental Drift through his studies in Iceland and a crystal growing method now lost to mankind – attest to his considerable intellect and dedication."
https://expo.uw.edu/expo/apply/494/proceedings/show?id=68965
"Geschichtete Lava an islaendischen Vulkanen" von Ferdinand Bernauer, Berlin-Charlottenburg
Zietschrift der Deutschen Geologischen Gesellshaft Heft 2 Band 89 Berlin 1937 / Verlag von Ferdinand Enke in Stuttgart