Reports on German airships, which include:

- Developments made by the German Naval Airship Service

- Information obtained from a German zeppelin test pilot, Captain Heinen

- Information about the Schutte-Lans airship

- A list of the German navy airships.

- Statement of German rigid airships after the armistice

- Statement of British rigid airships 1914-1925

- Statement of American rigid airships

- Statement of Italian rigid airships