That with a view of securing reciprocal advantages for the citizens, ports, and vessels of the United States, on and after the 1st day of August, 1892, whenever and so often as the President shall be satisfied that the passage through any canal or lock connected with the navigation of the St. Lawrence River, the Great Lakes, or the waterways connecting the same of any vessels of the United States, or of cargoes or passengers in transit to any port of the United States, is prohibited or is made difficult or burdensome by the imposition of tolls or otherwise which, in view of the free passage through the St. Marys Falls Canal now permitted to vessels of all nations, he shall deem to be reciprocally unjust and unreasonable, he shall have the power, and it shall be his duty, to suspend, by proclamation to that effect, for such time and to such extent (including absolute prohibition) as he shall deem just, the right of free passage through the St. Marys Falls Canal so far as it relates to vessels owned by the subjects of the government so discriminating against the citizens, ports, or vessels of the United States or to any cargoes, portions of cargoes, or passengers in transit to the ports of the government making such discrimination, whether carried in vessels of the United States or of other nations.

In such case and during such suspension tolls shall be levied, collected, and paid as follows, to wit:  Upon freight of whatever kind or description not to exceed $2 per ton, upon passengers not to exceed $5 each, as shall be from time to time determined by the President:  Provided, That no tolls shall be charged or collected upon freight or passengers carried to and landed at Ogdensburg, or any port west of Ogdensburg and south of a line drawn from the northern boundary of the State of New York through the St. Lawrence River, the Great Lakes, and their connecting channels to the northern boundary of the State of Minnesota.

SEC. 2.  All tolls so charged shall be collected under such regulations as shall be prescribed by the Secretary of the Treasury, who may require the master of each vessel to furnish a sworn statement of the amount and kind of cargo and the number of passengers carried and the destination of the same, and such proof of the actual delivery of such cargo or passengers at some port or place within the limits above named as he shall deem satisfactory; and until such proof is furnished such freight and passengers may be considered to have been landed at some port or place outside of those limits, and the amount of tolls which would have accrued if they had been so delivered shall constitute a lien, which may be enforced against the vessel in default wherever and whenever found in the waters of the United States.

And whereas the government of the Dominion of Canada imposes a toll amounting to about 20 cents per ton on all freight passing through the Welland Canal in transit to a port of the United States, and also a further toll on all vessels of the United States and on all passengers in transit to a port of the United States, all of which tolls are without rebate; and