PUBLIC LAWS-CH. 464-JUNE 16, 1938 dage crops and Forage crops and diseases: For the investigation and improve- ment 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, $294,993. Forest pathology. Forest pathology: For the investigation of diseases of forest and ornamental trees and shrubs, including a study of the nature and habits of the parasitic fungi causing the chestnut-tree bark disease, the white-pine blister rust, and other epidemic tree diseases, for the purpose of discovering new methods of control and applying meth- ods of eradication or control already discovered, and including $132,569 for investigations of diseases of forest trees and forest prod- 45 Stat. 701. ucts, under section 3 of the Act approved May 22, 1928 (16 U. S . C . e U. s . C . 581b. 581b), $255,392. Crptsandviseable 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, $1,289,182. Genetics and b Genetics and biophysics: For biophysical investigations in con- nection with the various lines of work herein authorized, $31,675. Mycology and dis Mycology and disease survey: For mycological collections and the maintenance of a plant-disease survey, $45,818. NationalArboretum. 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 estab- lish a National Arboretum, and for other purposes , approved March Stat.l'. 4 1927 (20 U. S . C . 191-194), including erection of buildings, em- 194. ployment of persons and means in the city of Washington and elsewhere, and traveling expenses of employees and advisory council, consulting land- $54,587, of which such amounts as may be necessary may be expended by contract or otherwise for the services of consulting landscape architects without reference to the Classification Act of 1923, as amended, or civil-service rules. Nematology. Nematology: For crop technological investigations, including the study of plant-infesting nematodes, $48,961. Plantexploration Plant exploration and introduction: For investigations in seed and plant introduction, including the study, collection, purchase, testing, propagation, and distribution of rare and valuable seeds, bulbs, trees, shrubs, vines, cuttings, and plants from foreign countries and from our possessions, and for experiments with reference to their introduction and cultivation in this country, $200,933. Plant nutrition. Plant nutrition: For plant-nutrition investigations, $16,024. Rubber, etc., plants. Rubber and other tropical plants: For investigation of crops, from tropical regions, and for the study and improvement of rubber plants by cultural methods, breeding, acclimatization, adaptation, and selec- tion, and for investigation of their diseases, $46,749. seed investigations. Seed investigations: For studying and testing commercial seeds, including the testing of samples of seeds of grasses, clover, or alfalfa, and lawn-grass seeds secured in the open market, and where such samples are found to be adulterated or misbranded the results of the tests shall be published, together with the names of the persons by 37 Stat. 506; 44 tat. whom the seeds were offered for sale, and for carrying out the pro- s.c . . visions of the Act approved August 24, 1912 (7 . S C. 111-114) 7 U.S . c . iJ 111-116. visions of the Act approved August 24, 1912 (7 U. S. C . 111-114), 724 [52 STAT.
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