In 1932,Henderson started "Seminary on Pareto and Methods of scientific Investigation, " that is known as the Pareto's Seminar, at the department and division of Sociology at Harvard University. It helped the proliferation of pareto's Sociology and the field of social scieces. Henderson came to believe that Pareto's Sociology was not only far superior to that of others as a scientific method, but also as a provider of opportunities for many competent and specialized students to network and stimulate their minds. In fact, students from the diverse fields of scientific study took his course. I will explain shortly in this paper Henderson's influence on F. J. Roethlisberger, G. C. Homans and T. Parsons. I will also attempt to explain clearly what his motive was for writing "Pareto's Science of Society" and Pareto's General Sociology : A Physiologist's Interpertation in 1935. I beleive that his major motive was to criticize the English version of Traite de Sociologie Generale, Whose English title is "Mind and Society." He acknowledged that pareto's Sociology was the greatest scientific study and the excellent "general" theory explaining the complex human interactions that have been investigated by the academic group in humanities and social sciences.