11 JANUARY 1930, Page 30

There is any amount of useful work to be done

on this subject of migration movements, and students of public affairs could not employ their time and talents better than in tracing the intimate connexion between population and policy, and thus securing consideration for the root cause of wars and international disputes. For such persons and any others who can spare the time there is No. 3 in the same series, Migration Laws and Treaties, in three volumes (P. S. King, il-or 7s. 6d. per voluine) which affords a particularly valuable conspectus of the whole field of inquiry. The subject matter of the separate volumes is (1) Emigration Laws and Regulations • (2) Immigration Laws and Regula- tions ; (3) International Treaties and Conventions.