Australian Navy displays its miht in Empire defence and war effort.

Australian Navy displays its miht in Empire defence and war effort. Taking in board a paravane for pretection against mines on an Astrralian warship. The R.A.N. are equiped with the same devices as the British warships in the North Sea and the English Channel, but they work in warmer waters! Ships like these are patrolling Australian waters, keeping German marchantmen bottled up and condemned to inactivity in neutral ports, there by reinforcing the blockade as well as guarding merchant shipping from would-be ......... - daily routine work of the Royal Australian Navy.