The subject upon which I have the honour to address you is so wide that within thetime at my disposal I can only hope to touch upon elementals. My task will be less onerous if I limit myself to the system of public control of industrial relations in South Australia. Each State of the Commonwealth has its own system. There is also a Commonwealth Court of Conciliation and Arbitration for the purpose of the settlement of industrial disputes which extend beyond the limits of a single State. This dual system of control by Courts of co-ordinate control has led to much conflict in the past. I can only say, speaking of time present, that practical necessities tend towards a co-ordination of the principles which underlie the decisions of Commonwealth and State Courts.