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 ington and elsewhere required for the investigations, experiments, and demonstrations herein authorized, as follows: General administrative expenses: For necessary expenses for general administrative purposes, including the salary of Chief of Bureau and other personal services in the District of Columbia. $183,430. Cereal crops and diseases: For the investigation and improvement of cereals, including corn, and methods of cereal production and for the study and control of cereal diseases, for the investigation of the cultivation and breeding of flax for seed purposes, including a study of flax diseases, for the investigation and improvement of broomcorn and methods of broomcorn production, and for determining the distri- bution of weeds and means for their control, $547,070. Cotton and other fiber crops and diseases: For investigation of the production of cotton and other fiber crops, including the improvement by cultural methods, breeding, and selection, fiber yield and quality, cotton soil-fertility, and the control of diseases, $422,940, of which sum not less than $14,700 shall be used for experimenting in Sea Island cotton, including its hybridization with other varieties. Drug and related plants: For the investigation, testing, and improve- ment of plants yielding drugs, spices, poisons, oils, and related products and byproducts, $62,250. Dry-land agriculture: For the investigation and improvement of methods of crop production under subhumid, semiarid, or dry-land conditions, $230,563: Provided, That no part of this appropriation shall be used for the establishment of any new field station. Forage crops and diseases: For the investigation and improvement of forage crops, including grasses, alfalfas, clovers, soybeans, lespedezas, vetches, cowpeas, field peas, and miscellaneous legumes; for the investigation of green-manure crops and cover crops; for investigations looking to the improvement of pastures; and for the investigation of forage-crop diseases and methods of control, $292,000. Forest pathology: For the investigation of diseases of forest and shade trees and forest products, including a study of the nature andl habits of the parasitic fungi, bacteria. viruses, and other causes of such diseases, for the purpose of developing methods of control andtoeradication and determining their application, $239.100. Fruit and vegetable crops and diseases: For investigation and control of diseases, for improvement of methods of culture, propa- gation, breeding, selection, and related activities concerned with the production of fruits, nuts, vegetables, ornamentals, and related plants, for investigation of methods of harvesting, packing, ship- ping. storing and utilizing these products, and for studies of the physiological and related changes of such products during processes of marketing and while in commercial storage, $1.361.828. Irrigation agriculture: For investigations of crop production on irrigable lands, the quality of irrigation water and its use by crops. and methods for improving and maintaining the productivity of irrigated soils, $134.900. National Arboretum: For the maintenance and development of the National Arboretum established under the provisions of the Act entitled "An Act authorizing the Secretary of Agriculture to establish a National Arboretum. and for other purposes", approved March 4, 4Stat. 422 . 1927 (20 U. S . C. 191-194), erection of buildings. employment of persons and means in the city of Washington and elsewhere, and travel expenses of employees and advisory council, $38,000, of which such amounts as may be necessary may be expended by contract or otherwise for the services of consulting landscape architects without 42 Stat. ;4ss. reference to the Classification Act of 1923, as amended, or civil- iU, 61 de seq. service rules. [57 STAT. 404 PUBLIC LAWS--CH. 215-JULY 12, 1943

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