60 STAT.] 79TH CONG., 2D SESS.-CH. 541 -JULY 5, 1946 contract; advertising in newspapers and technical publications with- out regard to section 3828 of the Revised Statutes; drilling and testing of foundations and dam sites, by contract if deemed necessary, pur- chase of planographs and lithographs, and leasing of private prop- erty to remove therefrom sand, gravel, stone, and other materials, without regard to section 3709 of the Revised Statutes (41 U. S . C . 5); as follows: Salaries and expenses: For salaries and expenses, regular boundary activities, including examinations, preliminary surveys, and investi- gations, $880,000. Construction: For detail plan preparation and construction of projects authorized by the Convention concluded February 1, 1933, between the United States and Mexico, the Acts approved August 19, 1935, as amended (49 Stat. 660, 1370; 22 U. S . C. 277-277d), August 29, 1935 (49 Stat. 961), June 4, 1936 (49 Stat. 1463), and the projects stipulated in the treaty between the United States and Mexico signed at Washington on February 3, 1944, $9,250,000, to be immediately available, and to remain available until expended: Provided, That no expenditures shall be made for the Lower Rio Grande flood-con- trol project for construction on any land, site, or easement in con- nection with this project except such as has been acquired by dona- tion and the title thereto has been approved by the Attorney General of the United States: Provided further That expenditures for the Rio Grande bank-protection project shall be subject to the provisions and conditions contained in the appropriation for said project as provided by the Act approved April 25, 1945 (Public Law 40): Pro- vided further, That expenditures for the Douglas-Agua Prieta sani- tation project shall be subject to the provisions and conditions con- tained in the appropriation for this project as provided by the Act approved July 2, 1942 (56 Stat. 477): Provided further, That expenditures for the Nogales sanitation project and an extension to the Nogales flood-control project shall be subject to the same provi- sions and conditions as to assurances by the city of Nogales, Arizona, as are required of the city of Douglas, Arizona, by this Act in con- nection with the Douglas-Agua Prieta sanitation project: Provided further, That no expenditures shall be made for the acquisition of lands or easements for sites for boundary fences except for procure- ment of abstracts or certificates of title, payment of recording fees, and examination of titles: Provided further, That unexpended bal- ances of appropriations for construction under the International Boundary Commission available for the fiscal year 1946 shall be merged with this appropriation and shall continue available until expended. Rio Grande emergency flood protection: For emergency flood-control work, including protection, reconstruction, and repair of all structures under the jurisdiction of the International Boundary and Water Com- mission, United States and Mexico, threatened or damaged by flood- waters 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, $100,000, to be immediately available, to be merged with the unobligated balance of the appropriation for this purpose in the Department of State Appropriation Act, 1945, and to remain available until expended. American Mexican Claims Commission: For all expenses necessary to carry into effect the provisions of the Settlement of Mexican Claims Act of 1942 (22 U. S. C. 661), as amended by the Act of April 3, 1945 (Public Law 29), including personal services in the District of Colum- bia; printing and binding; lawbooks and books of reference; $90,000, to be expended under the direction of the Secretary of State. 455 Advertising. 44U.S. C. §324. Post, p. 809. 48 Stat. 1621 . 59 Stat. 1219. Lower Rio Grande flood-control project. 59 Stat. 89. Douglas-Agua Prieta sanitation project. Nogales sanitation and flood-control proj- ects. Acquisition of lands for boundary fences. International Boundary Commis- sion. 59 Stat. 177. 58 Stat. 404 . 56 Stat. 1058. 59 Stat. 49. 22 U. S. C., Supp. V,* 661d g.