63 STAT.] 81ST CONG. , 1ST SESS.-CH. 280 -JUNE 29, 1949 such appraisements: Provided further, That poultry may be appraised in groups when the basis for appraisal is the same for each bird. BUREAU OF DAIRY INDUSTRY Salaries and expenses: For necessary expenses, including not to exceed $548,600 for personal services in the District of Columbia, in carrying out the provisions of the Act of May 29, 1924 (7 U. S . C . 401-404), including investigations, experiments, and demonstrations in dairy industry, for carrying out the applicable provisions of the Act of May 9, 1902 (26 U. S . C . 2325, 2326 (c)), relating to process or renovated butter, as amended, and the Act of May 23, 1908 (21 U. S. C . 94 (a)), insofar as it relates to the exportation of process or renovated butter, $1,093,200. BUREAU OF PLANT INDUSTRY, SOILS, AND AGRICULTURAL ENGINEERING SALARIES AND EXPENSES For expenses necessary for investigations, experiments, and demon- strations in connection with the production and improvement of farm crops and other plants and plant industries; soils and soil-plant relationships, and the application of engineering principles to agri- culture; plant diseases, including nematodes, and methods for their prevention and control; plant and plant-disease collections, and sur- veys; the distribution of weeds and means for their control; methods of handling, processing, transportation, and storage of agricultural products; and plants in foreign countries and our possessions for introduction into the United States, including explorations and sur- veys, and propagation and testing in this country; for the operation and maintenance of airplanes; and for personal services in the city of Washington, as follows: Field crops: For investigations on the production, improvement, and diseases of alfalfa, barley, clover, corn, cotton, flax, grasses, oats, rice, rubber crops, sorghums, soybeans, sugar beets, sugarcane, tobacco, wheat, and other field crops, $2,694,000, of which not to exceed $85,000 shall be available for the construction of an office and laboratory building at the Southern Great Plains Field Station, Woodward, Oklahoma. Fruit, vegetable, and specialty crops: For investigations on the production, improvement, and diseases of fruit, vegetable, nut, orna- mental, drug, condiment, oil, insecticide, and related crops and plants, $2,464,000. Forest diseases: For investigations of diseases of forest and shade trees and forest products, and methods for their control, $401,740. Soils, fertilizers, and irrigation: For investigations of soil manage- ment methods to increase and maintain productivity, including ferti- lization, liming, crop rotations, tillage practices, and other means of improving soils; fertilizers, fertilizer ingredients, and their improvement for agricultural use; soil management and crop produc- tion on dry and irrigated lands, and the quality of irrigation water and its use by crops; and for the classification of soils in a national system and indication of their extent and distribution on maps, and determination of their potential productivity under adapted cropping and improved soil management; $1,966,000, including not to exceed $16,000 for remodeling two structures at the United States Northern Great Plains Field Station, Mandan, North Dakota, to provide labor- atory facilities for investigations on lands to be irrigated under the Missouri Basin development program: Provided, That the Secretary shall have contractual authority in an amount not to exceed $100,000 333 Group appraisal for poultry. 43 Stat. 243. 32 Stat. 196. 35 Stat. 254 . 21U.S.C. § 94a. Plant and soil inves- tigations. Airplanes. Construction of building at Wood- ward, Okla. Remodeling of build- ings at Mandan, N. Dak. Contractual author- ity.
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