630 72d CONGRESS . SESS. I . CH. 443 . JULY 7, 1932 . inves tigat ion a nd d evelo pment of metho ds fo r the pre venti on of cooperative services . heating of agricultural products and the prevention of farm fires and fires in cotton gins, cotton-oil mills, grain elevators, and other structures, and to cooperate with associations and scientific societies in the development of methods of analysis, $453,699 . vtillZ raw ma te- Color investigations : For investigation and experiment in the rials for colorants .
utilization, for coloring, medicinal, and technical purposes, of raw materia ls gro wn or produc ed in the Un ited St ates, $75,000. Insecticideandfungi . Insecticide and fungicide investigations : For the investigation cide investig ations, and development of methods of manufacturing insecticides and fungicides, and for investigating chemical problems relating to the composition, action, and application of insecticides and fungicides, Pla nt du st explo- $117,300 . sions, etc. Plant dust explosions : For the investigation and development of methodslorprevont- methods for the prevention of grain-dust, smut-dust, and other dust ing '
explosions not otherwise provided for and resulting fires, including fires in cotton gins, cotton-oil mills, and grai n elevators, $ 36,1 90 . Naval stores investi- Nav al stores investig ations : Fo r the invest igatio n and demons tra- gations, otc . Field laboratory . Fertilizers . Soil types, composi- tion, etc ., investi- gations . Cooperative soils survey. Soil microbiology in . vestigations . Soil fertility . Services in the District . Entom ology Bureau . General expenses. Investigation of in- sects, etc. tion of improved methods or processes of preparing naval stores, the weighing, handling, transportation, and the uses of same, $68,406, of which $10,000 shall be available for continuing the establishment of a field l aboratory for nava l stores research work in t he pine r egions of the So uth, incl uding ere ction of buildings . Fer tilizer i nvestigat ions : For investigations within the United States of fertilizers, fertilizer ingredients, including phosphoric acid and potash, and other soil amendments and their suitability for agricultural use, $358,535 . Soil chemical and physical investigations : For chemical, physical, and physi cal-chemi cal inves tigations of soil types, so il compos ition, and soil minerals, the soil solution, solubility of soil, and all chemical and physical properties of soils in their relation to soil formation, soil texture, er osibility, and so il productivity , $61,190 . Soil survey : For the investigation of soils and their origin, for survey of the extent of classes and types, and for indicating upon maps and plats, by coloring or otherwise, the results of such investi- gations and surveys, $307,705 . Soil microbiology investigations : For investigations of the micro- org anisms of the so il and their act ivities, includi ng the testing o f sam- ples procured in the open market, of cultures for inoculating legumes, ot her crops , or soil , and the publicat ion of r esults, a nd if any such samples are found to be impure, nonviable, or misbranded the results of the tests may be published, together with the names of the manu- facturers and of the persons by whom the cultures were offered for sale, $43,355. Soil-fertility investigations : For soil investigations into causes of infertility ; maintenance of productivity ; effects of soil composition, cultural methods, fertilizers, and soil amendments on yield and quality of crops ; and the properties, composition, formation, and transformation of soil organic matter, $206,980 . Total, Bureau of Chemistry and Soils, $1,825,080, of which amount not to exceed $1,243,150 may be expended for personal services in the District of Columbia . BUREAU OF ENTOMOLOGY SALARIES AND GEN ER AL EXPENSES For necessary expenses connected with the investigations, experi- ments, and demonstrations in reference to the items hereinafter enu- merated for the promotion of economic entomology, for investigating
