German interested in artificial fog to be used for war purposes according to the Australian newspaper The Labor Daily dated Wednesday 29 December 1926

An item reported that German chemists developed a method to produce artificial fog on large scale which could be used for naval or land warfare. It became for the enemy (nearly) impossible to see the movements of ships or men. The first experiments were successfully executed at the harbour of Swinemünde, Germany while the fortress could not be seen in the impenetrable mist. Experiments done by the German army resulted in a fog with a maximum sight of 2 yards ahead. An eminent British professor however stated that this was not a new invention. He thought that “what the Germans had probably done was to make such fog on a large scale cheaply and conveniently”, probably a new chemical smoke using a new method. Some British aircraft were also able to create a fox-bank allowing to disappear out of sight.