453 63 STAT.] 81ST OONG. , 1ST SESS.-CH. 354 -JULY 20, 1949 next preceding fiscal year shall be merged with this appropriation and shall continue available until expended. RIO GRANDE EMERGENCY FLOOD PROTECTION For emergency flood-control work, including protection, reconstruc- tion, and repair of all structures under the jurisdiction of the Inter- national Boundary and Water Commission, United States and Mexico, threatened or damaged by floodwaters of the Rio Grande, which have heretofore been authorized and erected under the provisions of treaties between the United States and Mexico, or in pursuance of Federal laws authorizing improvements on the Rio Grande, $15,000, to be immedi- ately available, to be merged with the unobligated balance of the appropriation for this purpose for the next preceding fiscal year, and to remain available until expended. AMERICAN SECTIONS, INTERNATIONAL COMMISSIONS Salaries and expenses, American sections, international commis- sions, $500,000, to be disbursed under the direction of the Secretary of State, as follows: For necessary expenses to enable the President to perform the obligations of the United States under certain treaties between the United States and Great Britain in respect to Canada, including personal services in the District of Columbia; stenographic reporting services by contract; printing and binding; and hire of passenger motor vehicles; as follows: For the International Joint Commission, United States and Canada, under the terms of the treaty between the United States and Great Britain signed January 11, 1909 (36 Stat. 2448), including the salary of one Commissioner on the part of the United States who shall serve at the pleasure of the President (the other Commissioners to serve in that capacity without compensa- tion therefor); salaries of clerks and other employees appointed by the Commissioners on the part of the United States with the approval solely of the Secretary of State; travel expenses and compensation of witnesses in attending hearings of the Commission at such places in the United States and Canada as the Commission or the American Commissioners shall determine to be necessary, not to exceed $47,900; for special and technical investigations in connection with matters falling within the jurisdiction of the International Joint Commission, United States and Canada, including the purchase for replacement only of one passenger automobile; and the Secretary of State is authorized to transfer to any department or independent establishment of the Government with the consent of the head thereof, any part of this amount for direct expenditure by such department or establish- ment for the purposes set forth in this clause, not to exceed $144,000; for the International Boundary Commission, United States and Canada and Alaska, under the terms of the treaty between the United States and Great Britain in respect to Canada, signed February 24, 1925 (44 Stat. 2102), including the completion of such remaining work as may be required under the award of the Alaskan Boundary Tribunal and existing treaties between the United States and Great Britain; commutation of subsistence to employees while on field duty not to exceed $4 per day each, but not to exceed $3 per day each when a member of a field party and subsisting in camp; hire of freight and passenger motor vehicles from temporary field employees; and for payment for timber necessarily cut in keeping the boundary line clear, not to exceed $73,300; for the share of the United States of the expenses of the International Fisheries Commission under the convention be- tween the United States and Canada, concluded January 29, 1937 (50 Stat. 1351), not to exceed $35,000; for the share of the United States International loint Commission, U . B. and Canada. Transfer o funds. International Boundary Commis- sion, U. S . and Can- ada and Alaska. International Fish- eries Commisson.
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