PUBLIC LAWS-CH. 280-JUNE 29, 1949 44 Stat. 1422 . Post, p. 745. 37 Stat. 315. 7U.8.C.,Supp.I, § 154. 42 Stat. 833; 33 Stat. 1269; 56 Stat. 40 . 58 Stat. 735. Ante, p. 200. Oriental fruitfly. Transfer of funds. Contracts for re- search. to construct or acquire buildings, facilities, and equipment for the station at Brawley. Agricultural engineering: For investigations involving the appli- cation of engineering principles to agriculture, including farm power and equipment, rural water supply and sanitation, and rural electri- fication; farm buildings and their appurtenances and buildings for processing and storing farm products, and the preparation and dis- tribution of building plans and specifications; cotton ginning, and other engineering problems relating to the production, processing, transportation, and storage of agricultural products; $724,000. National Arboretum: For the maintenance and development of the National Arboretum established under the provisions of the Act approved March 4, 1927 (20 U. S. C. 191-194), $170,000, of which not to exceed $15,000 shall be available for the construction of a farm machinery storage and shop building. BuREAT OF ENTOMOLOGY AND PLANT QUARANTINE SALARIES AND EXPENSES For expenses necessary for investigations, experiments, demonstra- tions, and surveys for the promotion of economic entomology, for investigating and ascertaining the best means of destroying insects and related pests injurious to agriculture, for importing useful and beneficial insects and bacterial, fungal, and other diseases of insects and related pests, for investigating and ascertaining the best means of destroying insects affecting man and animals, and the best ways of utilizing beneficial insects, for carrying into effect the provisions of the Plant Quarantine Act of August 20, 1912, as amended (7 U. S. C. 151-167), the Honey Bee Act (7 U. S . C . 281-283), the Insect Pest Act (7 U. S. C. 141-144), the Mexican Border Act (7 U. S. C. 149) and the Organic Act of 1944 (7 U. S. C. 147a), authorizing the eradica- tion, control, and prevention of spread of injurious insects and plant pests; including the operation and maintenance of airplanes and the purchase of not to exceed four, and not to exceed $802,000 for personal services in the District of Columbia, as follows: Insect investigations: For the investigation of insects affecting fruits, grapes, nuts, trees, shrubs, forests and forest products, truck and garden crops, cereal, forage and range crops, cotton, tobacco, sugar plants ornamental and other plants and agricultural products, household possessions, and man and animals; for bee culture and apiary manage- ment; for classifying, identifying, and collecting information to deter- mine the distribution and abundance of insects; for investigations in connection with introduction of natural enemies of injurious insects and related pests and for the exchange with other countries of useful and beneficial insects and other arthropods; for developing methods, equipment, and apparatus to aid in enforcing plant quarantines and in the eradication and control of insect pests and plant diseases; and for investigations of insecticides and fungicides, including methods of their manufacture and use and the effects of their application, $3,502,300, of which $173,500 is for bee culture: Provided, That $450,000 shall be available for oriental fruitfly, of which $25,000 may be transferred to and consolidated with the appropriations, "insect and plant disease control" and "foreign plant quarantine", to either or in part to each as may be deemed best, for inspection and/or control work on this pest; and $250,000 may be used for contracts with public or private agencies for research without regard to provisions of existing law, and the amounts obligated for contract research shall remain available until expended. 334 [63 STAT.