Continuation from page 104 (AA122/3/2/15) describing a demonstration by the diver of control of his position in water by the releasing or closing the valve at the side of the helmet. Further describes the health risks and dangers faced by the divers such as ear perforation due to changing water pressures and the individual code of signals used by divers.

1. Photograph: 'The Inscrutable Asiatic'

Places mentioned: Darwin (NT); Singapore (Republic of Singapore)

People mentioned: Captain [Ancell Clement] Gregory (1878-1942)

Photo number/s as per Journal and Index of Photographs: 169