act shall be construed to apply to the Welland Canal, the canal and improvement of the waters between Lake Erie and Lake Huron, and to the waters of the St. Marys River and Canal:  And provided further, That this act shall cease to be in force from and after the date of the proclamation of the President of the United States to the effect that said reciprocal privilege has been withdrawn, revoked, or rendered inoperative by the said government of the Dominion of Canada.”

And whereas an act of Congress making appropriation for the legislative, executive, and judicial expenses of the Government for the fiscal year ending June 30, 1894, and for other purposes, approved March 3, 1893, further amended the act of May 24, 1890, as follows: 

That an act approved May 24, 1890; entitled “An act to amend an act entitled ’An act to aid vessels wrecked or disabled in the waters conterminous to the United States and the Dominion of Canada,’ approved June 19,1878,” be, and is hereby, amended by striking out the words “the Welland Canal.”

And whereas by an order in council dated May 17, 1893, the government of the Dominion of Canada has proclaimed an act entitled “An act respecting aid by United States wreckers in Canadian waters” to take effect June 1, 1893, said act reading as follows: 

  Her Majesty, by and with the advice and consent of the senate and house
  of commons of Canada, enacts as follows: 

1.  United States vessels and wrecking appliances may salve any property wrecked and may render aid and assistance to any vessels wrecked, disabled, or in distress in the waters of Canada contiguous to the United States.

  2.  Aid and assistance include all necessary towing incident thereto.

  3.  Nothing in the customs or coasting laws of Canada shall restrict the
  salving operations of such vessels or wrecking appliances.

4.  This act shall come into force from and after a date to be named in a proclamation by the Governor-General, which proclamation may be issued when the Governor in council is advised that the privilege of salving any property wrecked or of aiding any vessels wrecked, disabled, or in distress in United States waters contiguous to Canada will be extended to Canadian vessels and wrecking appliances to the extent to which such privilege is granted by this act to United States vessels and wrecking appliances.

5.  This act shall cease to be in force from and after a date to be named in a proclamation to be issued by the Governor-General to the effect that the said reciprocal privilege has been withdrawn, revoked, or rendered inoperative with respect to Canadian vessels or wrecking appliances in United States waters contiguous to Canada.

And whereas said proclamation of the Governor-General of Canada was communicated to this Government by Her Britannic Majesty’s ambassador on the 2d day of June last: