Four documents pertinent to the history of economic thought are published for the first time: A list of references in economics dating from 1880. A syllabus of lectures on the history of economics given by C.H. Hull in Cornell University in 1895. The outlines for Walton H. Hamilton's Principles-of Economics course in the University of Michigan, 1911. Notes taken in James S. Earley's course on the Development of Economics, 1954-1955, by Warren J. Samuels.