SELECTED REFERENCES
Accidents, Symposium on Automobile Hazards, by Ralph Stickle, James L. Roche, Joseph H. Handlon, and William G. Fitzpatrick. Electric Railway Journal, Vol. LVI, pp. 913-921.
American Railway Association, Bulletin issued as a part of the “Cross Crossings Cautiously,” campaign, 1922.
Darrow, F. T., Asst. Chief Engr., C. B. & Q. R. R., “Grade Crossing Elimination,” Nebraska Blue Print, May, 1920. Lincoln.
Eno, William Phelps, “The Science of Highway Traffic Regulation,” published by himself and distributed by Brentano’s, New York.
“Facts and Figures of the Automobile Industry,” 1922, National Automobile Chamber of Commerce, New York.
Harper’s Weekly, Accounts and pictures of early railway accidents, years 1840-1860.
Held, L. A., Adjuster for the American Railway Express Company, Express Messenger, July, 1922.
Williar, Harry D., Jr., “Maryland Road Accident Map.” Public Roads, September, 1921.