Abstract: Wesley Hohfeld’s scheme of jural relations possesses two fundamental strengths. First, the legal relations tend to correspond closely to potential legal results availing between individual persons – who can sue whom for what. Second, the system of “fundamental” relations possesses a symmetry and generality that made it attractive to the Realists as a springboard to their approach to law. In this paper we argue that Hohfeld’s scheme is incomplete: without more, the legal relations identified by Hohfeld do not scale up properly. Instead of being mere aggregates of more basic relations, complex relations and legal doctrines are structured and interact as a system. Activities that belong at the mid-level between the individual and large populations are most difficult to capture. What is required is a formulation of the legal relations that connects the micro of parties and the macro of the legal system at the level of society. The adoption by the Legal Realists of Hohfeld’s incomplete scheme built a gap between the micro and the macro into most subsequent American theorizing about private law. By contrast, other pre- and non-Realist versions of the broadly “Hohfeldian” program, and in particular that of Albert Kocourek, pay more attention to realistic, “economical” methods of delineating legal relations. These analytical but less reductionist formulations “scale up” better than the conventional picture, and can inspire new theories that explain more of the emergent properties of the legal system.