Green, G. A., “Motor Bus Transportation,” Society of Automotive Engineers, Journal, 1920.

Johnson, Emery R., “Elements of Transportation,” D. Appleton & Company, New York.

MacDonald, Thomas H., “Federal Aid Highways,” Proceedings of the 8th Annual Meeting of the Chamber of Commerce of the United States.

Norton, S. V., “The Motor Truck as an Aid to Business,” Part I. A. W. Shaw Company, Chicago.

Riggs, Henry E., “Report of the Committee on Interrelation of Highway, Railway, and Waterway Transport,” National Traffic Association of Chicago, N. A. C. C., 1920.

Thirlwall, J. C., “Fields of the Rail Car, Trolley Bus and Gasoline Bus,” General Electric Review, Vol. XXIV, pp. 974-985.

White, Windsor T., “Benefits of War Experience,” Proceedings of the Eighth Annual Meeting of the Chamber of Commerce of the United States.

FOOTNOTES

[159] Chatburn’s “Highway Engineering,” Wiley & Sons, N. Y.

[160] Cf. “Root, Hog or Die,” by Philip Cabot, Atlantic Monthly, August, 1921.