Pan American Scientific Congress. Additional appropriation, expenses 2d Pan American Scientific Congress, communication submitting estimate of appropriation in sum of $35,000, in addition to $50,000 appropriated by diplomatic and consular acts of June 30, 1914, and Mar. 4, 1915, for participation by Government of United States in, and to meet necessary expenses of 2d Pan American Scientific Congress, Dec. 27, 1915-Jan. 8, 1916.