Transportation Volume 15
By Edwin J. Clapp, Ph.D., formerly Professor of Economics, New York University.
Foreign Trade and Shipping Volume 16
By J. Anton deHaas, Ph.D., Professor of Foreign Trade, New York University.
Banking Volume 17
By Major B. Foster, M.A., Assistant to the Executive Committee, Alexander Hamilton Institute, in collaboration with Jesse H. Riddle.
International Exchange Volume 18
Prepared by the Alexander Hamilton Institute in collaboration with E. L. Stewart Patterson, Superintendent of the Eastern Townships Branches, Canadian Bank of Commerce.
Insurance Volume 19
Prepared by the Alexander Hamilton Institute, in collaboration with Edward R. Hardy, Ph.B., Lecturer on Fire Insurance, New York University School of Commerce, Assistant Manager, New York Fire Insurance Exchange; S. S. Huebner, Ph.D., Professor of Insurance, University of Pennsylvania; G. F. Michelbacher, M.A., Actuary of the National Workmen's