http://pec.lib.wvu.edu/record/P132531914Panama Canal tolls : speech of Hon. William E. Chilton of West Virginia in the Senate of the United States, May 14, 1914, favoring the repeal of the Panama Canal free tolls law.<p> Pamphlet.</p>Chilton, William E. (William Edwin), 1858-1939.Panama Canal (Panama)--Rates and tolls.14256