This comprehensive and thoroughly documented inquiry into the nature and working of federal government affords the most enlightening survey that has yet appeared in convenient compass of a system of political organization which many regard as the inevitable safeguard of a future World-order.Professor Wheare examines the workings of federalism in the United States, Switzerland, Canada, and Australia,writing not as an advocate for or against but as a dispassionate investigator considering hard facts as well as high principles.He has, however,was combined this objective approach with unflagging interest in the subject, and his book is as much for the intelligent citizen as for the student of public affairs.Professor Wheare indulges in no speculations on the spread of federal government, but his book, with its skin analysis,illuminated by a gentle and something ironical wisdom,may be commanded to those who talk confidently of “the Parliament of Man, the Federation of the world”.