Engaged in machine building and other industries, 1899-1908. Assistant in mathematics and physics University Texas, 1908-1910. Instructor mathematics and physics Southwestern U., 1910-1911.
Instructor social ethics, Meeting House Hill, Dorchester, Massachusetts, 1912-1913. Instructor mathematics University Texas 1913-1914. Instructor mechanics Elm Vocational School, Buffalo, 1914-1916.
Instructor business England and history, assistant commandant Baylor University and Hardin Military School, Dallas, 1918-1919. Lecturer business organization and management Business Training Corporation, New York City, 1919-1920. Professor economics, sociology, and head department Tufts College and Graduate School, 1924-1931.
Executive secretary, treasurer American Association University Professors, 1929-1937. Consultant in sociology Library of Congress, 1930-1937. Professor, head department economics Miami University, 1948-1958.
Professor mathematics, head department Western College, 1958-1961. Visiting professor science and technical Southern Illinois U., 1961-1962. Consultant price stablzn. and nat. income, 1972.
Lecturer, World Peace Foundation, Council National Defense, League to Enforce Peace. Educational director Niagara Falls Motion Picture Company, 1914-1916. Secretary investigation of prostitution in American, Bureau Social Hygiene, Inc., Rockefeller Foundation, New York City, 1916-1918.
Director W.C.C.S. activities, 1918. Director industrial economics research National Industrial Conference Board, New York City, 1920-1923. Construction engineering and economist, New York City, 1919-1924.
Head consumer income and demand unit OPA, also consultant specialist Postwar Reconstrn., Bureau Labor Statistics, 1941-1942. Senior staff member Postwar Reconstrn. Problems Brookings Institution, Washington, 1942-1948.
Organized The Laysers, 1969.
- Author numerous books and articles, 1920-1975, including: The Seven Seals of Science, 1927, review edit. 1937
Member American Society of Mechanical Engineers, American Economics Association, American Sociological Society, Eastern Sociological Conference, Econometric Society, Royal Economics Society (England), Inter-American Bibilog. Association, American Academy Political and Social Science, American Society International Law, American Association Labor Legislation, Foreign Policy Association, Society Industrial Engineers (president New York chapter 1920-1922), American History Association, Academy Political Science, History Science Society (recording secretary), Southwestern Scholarship Society (honorary), American Association for the Advancement of Science (chairman Secretary L., vice president 1941), Pi Gamma Museum. Clubs: Engineers’ (New York City).