LETTER OF TRANSMITTAL. NATIONAL ACADEMY OF SCIENCES, OFFICE OF THE PRESIDENT, Washington, D. C., January 27, 1913. SIR: In conformity with the requirements of the act of incorporation, approved March 3, 1863, I have the honor to submit herewith a report of the operations of the National Academy of Sciences for the year ending December 31, 1912. Very respectfully, The PRESIDENT OF THE SENATE. IRA REMSEN, President. 5 |