I transmit herewith a report, dated on the 9th instant, from the Secretary of State, with the accompanying papers, in answer to a resolution of the House of Representatives of the 25th ultimo, requesting the President to transmit to that body, if not deemed incompatible with the public interest, copies of such dispatches as have recently been received by the Secretary of State from the consul-general at Shanghai upon the subject of slavery in China and those portions of the penal code of China which forbid expatriation. R.B. HAYES. WASHINGTON, _March 12, 1880_. _To the House of Representatives_: In answer to a resolution of the House of Representatives of March 2, 1880, requesting the Secretary of State to communicate to the House certain information in relation to the publication and circulation of commercial reports, I transmit herewith a report from the Secretary of State, with its accompanying papers. R.B. HAYES. WASHINGTON, _March 29, 1880_. _To the Senate of the United States_: In compliance with the resolution of the Senate of the 29th of January, 1880, calling for information in relation to the awards of the mixed commission organized under the provisions of the treaty of April 25, 1866, between the United States and Venezuela, I transmit herewith a report from the Secretary of State upon the subject. R.B. HAYES. WASHINGTON, _April 12, 1880_. _To the House of Representatives_: In response to the resolution of the House of Representatives of the 12th of February last, on the subject of negotiations concerning the immigration of Chinese to the United States, I transmit a report of the Secretary of State, to whom the matter was referred. R.B. HAYES. WASHINGTON, _April 15, 1880_. _To the Senate of the United States_: In response to the resolution of the Senate of the 27th of February last, concerning the action had by the Executive with respect to the investigation of certain cases in which awards were made by the late United States and Mexican Commission, I transmit herewith a report of the Secretary of State, to whom the matter was referred. R.B. HAYES. EXECUTIVE MANSION, _Washington, D.C., April 16, 1880_. _To the House of Representatives_: The board for testing iron, steel, and other metals, appointed under the authority of "An act making appropriations for sundry civil expenses of the Government for the fiscal year ending June 30, 1876, and for other purposes," contracted with Mr. A.H. Emery, of New York, for a testing machine, to be paid out of the appropriation made for the purpose. That machine has been completed and accepted, and is now in position at the Watertown Arsenal, Mass. It is spoken of by the members composing the late board as the most perfect and reliable machine in the world, embodying new mechanical principles and combinations not heretofore used in any other constructions.