Mechanical Engineering.—Discussion on Motor Truck Transportation, Inland Waterways, etc., Vol. XLIII, pp. 181-183.
Motor Rail Cars:
Railway Review.—Vol. LXIX, pp. 753-755, 792-796; 860, Vol. LXX, 49-50, 191-192, 389-392, 501, 656, 669-673, 741-747, 928-929, 930.
Railway Age.—Vol. LXXI, pp. 841-843, Vol. LXXII, pp. 749-750, 886, 920, 1008-1009, 1069-1070, 1183-1184.
Electric Railway Journal.—Vol. LXIX, pp. 419, 513, 685-686.
Municipal Engineering.—“Text of Colorado Decision Affecting Commercial Use of Highways.” Vol. LXIII, sup. pp. 17-18.
National Automobile Chamber of Commerce.—Graham, George H., “The Motor Vehicle—Competitor or Ally,” 1920.
Norton, S. V., “The Motor Truck as an Aid to Transportation,” A. W. Shaw Company, Chicago.
Power Wagon.—Various articles March, July, October, November, and December, 1921, and during the year 1922.
Stocks, C. W., “The Bus Transportation Field,” Electric Railway Journal, N. Y., Vol. LVIII, pp. 517-522.