Z. TAYLOR.

WASHINGTON, March 19, 1850.

To the Senate of the United States:

I herewith transmit to the Senate, for their advice in regard to its ratification, “a general treaty of amity, navigation, and commerce” between the United States of America and the State of Nicaragua, concluded at Leon by E. George Squier, charge d’affaires of the United States, on their part, and Senor Zepeda, on the part of the Republic of Nicaragua.

I also transmit, for the advice of the Senate in regard to its ratification, “a general treaty of amity, navigation, and commerce” negotiated by Mr. Squier with the Republic of San Salvador.

I also transmit to the Senate a copy of the instructions to and correspondence with the said charge d’affaires relating to those treaties.

I also transmit, for the advice of the Senate in regard to its ratification, “a general treaty of peace, amity, commerce, and navigation” negotiated by Elijah Hise, our late charge d’affaires, with the State of Guatemala.

I also transmit, for the information of the Senate, a copy of a treaty negotiated by Mr. Hise with the Government of Nicaragua on the 21st of June last, accompanied by copies of his instructions from and correspondence with the Department of State.

On the 12th day of November, 1847, Senor Buetrago, secretary of state and of the affairs of war and foreign relations and domestic administration of the Supreme Government of the State of Nicaragua, addressed a letter from the Government House at Leon to Mr. Buchanan, then Secretary of State of the United States, asking the friendly offices of this Government to prevent an attack upon the town of San Juan de Nicaragua, then contemplated by the British authorities as the allies of the Mosquito King.  That letter, a translation of which is herewith sent, distinctly charges that—­

The object of the British in taking this key of the continent is not to protect the small tribe of the Mosquitos, but to establish their own empire over the Atlantic extremity of the line, by which a canal connecting the two oceans is most practicable, insuring to them the preponderance on the American continent, as well as their direct relations with Asia, the East Indies, and other important countries in the world.

No answer appears to have been returned to this letter.

A communication was received by my predecessor from Don Jose Guerrero, President and Supreme Director of the State of Nicaragua, dated the 15th day of December, 1847, expressing his desire to establish relations of amity and commerce with the United States, a translation of which is herewith inclosed.  In this the President of Nicaragua says: