54 STAT.] 76TH CONG. , 3D SESS.-CH. 421 -JUNE 25, 1940 General administrative expenses: For necessary expenses for gen- eral administrative purposes, including the salary of the Chief of Bureau and other personal services in the District of Columbia, $75,500. Dairy investigations: For conducting investigations, experiments and demonstrations in dairy industry, cooperative investigations of the dairy industry in the various States, and inspection of renovated- butter factories, including repairs to buildings, not to exceed $5,000 for the construction of buildings, $655,905. Total, salaries and expenses, Bureau of Dairy Industry, $731,405 of which amount not to exceed $353,580 may be expended for personal services in the District of Columbia. BUREAU OF PLANT INDUSTRY SALARIES AND EXPENSES For the investigation of fruits, fruit trees, grain, cotton, tobacco, vegetables, grasses, forage, drug, medicinal, poisonous, fiber, and other plants and plant industries, and of soils and soil-plant rela- tionships, in cooperation with other branches of the Department, the State experiment stations, and practical farmers; for the erec- tion of necessary farm buildings: Provided, That the cost of any building erected, except head houses connecting greenhouses, shall not exceed $2,500; and for the employment of persons and means in the city of Washington and elsewhere required for the investigations, experiments, and demonstrations herein authorized, as follows: General administrative expenses: For necessary expenses for gen- eral administrative purposes, including the salary of chief of bureau and other personal services in the District of Columbia, $209,942. Arlington Farm: For continuing the necessary improvements to establish and maintain a general experiment farm and agricultural station on the Arlington estate, in the State of Virginia, in accord- ance with the provisions of the Act of Congress approved April 18, 1900 (31 Stat. 135, 136), $49,414. Botany: For investigation, improvement, and utilization of wild plants and grazing lands, and for determining the distribution of weeds and means of their control, $76,635, of which $40,000 shall be expended for scientific investigation concerning control and eradi- cation of whitetop, bind weed, and other noxious weeds. 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, and for the investigation of the cultivation and breeding of flax for seed purposes, including a study of flax diseases, and for the investigation and improvement of broomcorn and methods of broomcorn production, $500,000. Cotton and other fiber crops and diseases: For investigation of the production of cotton and other fiber crops, including the improve- ment by cultural methods, breeding, and selection, fiber yield and quality, and the control of diseases, $408,345, 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 improvement of plants yielding drugs, spices, poisons, oils, and related products and byproducts, $43,500. Dry-land agriculture: For the investigation and improvement of methods of crop production under subhumid, semiarid, or dry-land conditions, $226,828: Provided, That no part of this appropriation shall be used for the establishment of any new field station. 543 Administrative ex- penses. Dairy investiga- tions. Total; personal serv- ices. Investigation of fruits, etc. Farm buildings. Proviso. Limitation on cost; exception. Administrative ex- penses. Arlington Farm. Wild plants and grazing lands; weeds. Cereal crops and diseases. Cotton and other fiber crops and dis- eases. Sea Island cotton. Drug and related plants. Dry-land agricul- ture. Proiso. Restriction.