Dicey derided federal government as weak government; others have found genius lurking in its institutional arrangements. But most students, as Professor S. R. Davis\u27s illuminating little book makes clear, have considerable difficulty in identifying what federal government is, whether the concept is approached analytically, legally, descriptively or normatively. American lawyers are not inclined to pursue such inquiries too far. For, like Justice Black, they are concerned only with Our Federalism and, like Justice Stewart and obscenity, they know it when they see it. Moreover, American lawyers have, in large measure, confined their attention to one specific component of Our Federalism; its legal content. Historically, the major leg...