31.  Surgical and mathematical instruments.

  32.  Stones and fire bricks for smelting furnaces.

  33.  Vessels and boats of all kinds, fitted together or in parts.

  34.  Gold and silver in bullion, bars, or coin.

  It is understood that the packages or coverings in which the articles
  named in the foregoing schedule are imported shall be free of duty if
  they are usual and proper for the purpose.

And that the Government of Nicaragua has further stipulated that the laws and regulations adopted to protect its revenue and prevent fraud in the declarations and proof that the articles named in the foregoing schedule are the product of the United States of America shall impose no undue restrictions on the importer nor additional charges on the articles imported; and

Whereas the Secretary of State has, by my direction, given assurance to the envoy extraordinary and minister plenipotentiary of Nicaragua at Washington that this action of the Government of Nicaragua in granting freedom of duties to the products of the United States of America on their importation into Nicaragua is accepted as a due reciprocity for the action of Congress as set forth in section 3 of said act: 

Now, therefore, be it known that I, Benjamin Harrison, President of the United States of America, have caused the above-stated modifications of the tariff laws of Nicaragua to be made public for the information of the citizens of the United States of America.

In testimony whereof I have hereunto set my hand and caused the seal of the United States to be affixed.

[SEAL.]

Done at the city of Washington, this 12th day of March, 1892, and of the Independence of the United States of America the one hundred and sixteenth.

BENJ.  HARRISON.

By the President: 
  WILLIAM F. WHARTON,
    Acting Secretary of State.

BY THE PRESIDENT OF THE UNITED STATES OF AMERICA.

A PROCLAMATION.

Whereas in section 3 of an act passed by the Congress of the United States entitled “An act to reduce the revenue and equalize duties on imports, and for other purposes,” approved October 1, 1890, it was provided as follows: 

That with a view to secure reciprocal trade with countries producing the following articles, and for this purpose, on and after the 1st day of January, 1892, whenever and so often as the President shall be satisfied that the government of any country producing and exporting sugars, molasses, coffee, tea, and hides, raw and uncured, or any of such articles, imposes duties or other exactions upon the agricultural or other products of the United States which, in view of the free introduction of such sugar, molasses, coffee, tea, and hides into the United States, he may deem to be reciprocally unequal and unreasonable, he shall have the power and it shall