61 STAT.] 80TH CONG. , 1ST SESS.-CH. 337-JULY 25, 1947 Enforcement of Black Bass and Whaling Treaty Acts: For enforce- mentoftheActofJuly2,1930,andtheActofMay1,1936(16U.S.C. 851-855, 901-915), $22,400. Biological investigations: For biological investigations of the relations, habits, geographic distribution, and migration of animals, including the resources thereof, and plants, and the preparation of maps of the life zones; for investigations of the relations of wild animal life to forests, under section 5 of the Act approved May 22, 1928 (16 U. S. C. 581d); for investigations, experiments, and demon- strations, independently or in cooperation with other agencies or individuals, in developing and applying methods for the control of damage to agricultural and horticultural crops by birds, and for investigations of the wildlife resources of the Territory of Alaska, $258,450. Control of predatory animals and injurious rodents: For investi- gations and demonstrations in destroying animals injurious to agriculture, horticulture, forestry, animal husbandry, and wild game, and in protecting stock and other domestic animals through the suppression of rabies and other diseases in predatory wild animals as authorized by law (7 U. S . C . 426), including not to exceed $3,000 for the purchase of printed bags, tags, and labels; and for repairs, addi- tions, and installations in and about the grounds and buildings of the game-management supply depot and laboratory at Pocatello, Idaho, including purchase, transportation, and handling of supplies and materials for distribution from said depot to other projects, in accordance with the provisions of the Act approved June 24, 1936 (16 U. S . C. 667), $900,000. Protection of Migratory birds: For the enforcement of the Migra- tory Bird Treaty Act of July 3, 1918, as amended, to carry into effect the treaty with Great Britain and the convention between the United States and the United Mexican States (16 U. S . C. 703-711); for cooperation with local authorities in the protection of migratory birds, including necessary investigations; for the enforcement of the Act for the protection of the bald eagle (16 U. S. C. 668-668d); for the enforcement of sections 241-244 of the Act approved March 4, 1909, as amended (18 U. S. C. 391-394), and for the enforcement of section 1 of the Act approved May 25, 1900 (16 U. S . C . 701), including necessary investigations, $350,000, of which not to exceed $10,000 may be expended in the discretion of the Secretary for the purpose of securing information concerning violations of the laws for the enforce- ment of which this appropriation is made available. Enforcement of Alaska game law: For the enforcement of the Act of January 13, 1925, as amended (48 U. S . C . 192-211), $175,000, of which not to exceed $10,000 may be expended in the discretion of the Secretary for the purpose of securing information in connection with and for the prosecution of violators of the law for the enforce- ment of which this appropriation is made available. Maintenance of mammal and bird reservations: For the adminis- tration, protection, and maintenance of mammal and bird reserva- tions and the maintenance and protection of game introduced into suitable localities on public lands, under supervision of the Fish and Wildlife Service, including construction of fencing, wardens' quar- ters, shelters for animals, landings, roads, trails, bridges, ditches, telephone lines, rockwork, bulkheads, repair of damage to public roads within reservation areas occasioned by authorized operations of the Fish and Wildlife Service, and other improvements necessary for economical administration; for the purchase, capture, and trans- portation of game for national reservations; and for the maintenance 487 46 Stat. 845. 49 Stat. 1246 . Post, p. 517. 45 Stat. 701 . 46 Stat. 1468 . 7U. S.C.§§426-426b. Pocatello, Idaho, de- pot and laboratory. 49 Stat. 1913. 40 Stat. 755. 54 Stat. 250. 35 Stat. 1137 . 31 Stat. 187. Socuring Informa- tion of law violations. 43 Stat. 739. Post, p. 621.