1266 FIFTY-NINTH CONGRESS. Sess. II. Ch. 2907. 1907. hundred dollars each, five thousand four hundred dollars; two gardeners, at eight hundred and forty dollars each, one thousand_six hundred and eighty dollars; four gardeners, at seven hundred and eighty dollars each, three thousand one hundred and twenty dollars; one gardener, six hundred dollars; two ardeners, at seven hundred and twenty dollars each, one thousanf four hundred and forty dollars; three rdeners, at six hundred and sixty dollars each, one thousand nine hlindred and eighty dollars; one skilled laborer, nine hundred dollars; one ainter, eight hundred and forty dollars; two plumbers, at eight hundired and forty dollars each, one thousand six hundred and eighty dollars; three firemen, at seven hundred and twenty dollars each, two thousand one hundred and sixty dollars; two clerks or messengers, at eight hundred and forty dollars each, one thousand six hundred and eighty dollars; eight skilled laborers, at seven hundred and twenty dollars each, five thousand seven hundred and sixt dollars; three skilled laborers, at six hundred and sixty dollars each, one thousand nine hundred and eighty dollars; seven skilled laborers, at six hundred dollars each, four thousand two hundred dollars; three skilled laborers, at five hundred and forty dollars each, one thousand six hundred and twenty dollars; one messenger, six hundred and sixty dollars; three messengers, at six hundred dollars each, one thousand eight hundred dollars; three watchmen, at seven hundred and twenty dollars each, two thousand ene hundred and sixty dollars; two watchmen, at six hundred dollars each, one thousand two hundred dollars; nine skilled laborers or messengers, at four hundred and eighty dollars each, four thousand three hundred and twenty dollars; two messenger boys, at three hundred and sixty dollars each, seven hundred and twenty dollars; two messenger boys, at three hundred dollars each, six hundred dollars; in all, one hundred and eighty-nine thousand four hundred and fifty dollars. §’,f,?,fs{*;:,£fgg,‘§,'{$°*· Gnxnmu. nxrnnsns, BUREAU or PLANT INDUs·rnY: To investigate fruits, fruit trees, grain, cotton, tobacco, vegetables, grasses, forage, drug, medicinal, poisonous, fiber, and other plants and plant industries, in cooperation with other branches of the Department, the State experiment stations, and practical farmers; to study plant and orchard diseases and demonstrate the treatment of same; to study plant physiologv in relation to crop production; to originate and improve crops by breeding and selection; to investigate and encourage the adoption of improved methods of farm management and farm practice; to investigate the feeding value of farm crops and the um of fertilizers; to investigate the causes of decay in forest timber and timber used for construction purposes, and to devise means for preventing the decay of ’ the same; to investigate the practical application in agriculture of the fixation of atmospheric nitrogen by bacteria and other microorganisms in soils and in the root tubercles of leguminous and other plants; to cultivate and distribute these nitrogen tixers; to study and find methods for preventing algal and other contaminations of water supplies; to carry on special investigations of the conditions of grain prouction, handling, grading, and transit, and of the means of improving the same; to mode fruits, vegetables, and other plants, and furnish · duplicate models to the experiment stations of the several States, as far as found practicable; to investigate the methods of harvesting, packing, storing. and shipping fruits and vegetables. and for experimental shipments of fruits and vegetables within the United States and to foreivn countries; to cultivate and care for experimental gardens and grounds, _ manage and maintain conservatories, greenhouses, and plant and fruit ¤g;£31g<;_;_ experi- propagating houses; to enable the Secretary of Agriculture to continue the necessary mtprovements to establish and maintain a general experimental farm an agricultural station on the Arlington estate. in the
