Panama Canal tolls, hearings before subcommittee, 75th Congress, 1st session, on S. 1912, to provide for measurement of vessels using Panama Canal, and S. 2493, to provide permanent and equitable method of assessing tolls upon vessels transiting Panama Canal, to provide for method of making changes in rules for measurement of vessels for Panama Canal and in rates of tolls, and to stabilize fiscal system of Panama Canal in its relation to tolls, July 13 and 28, 1937.

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