PUNCTIOXS OF MAJOR BRANCHES OF DEPT. OF AGRICULTURE VII 

 BUREAU OF DAIRY INDUSTRY 



The Bureau of Dairy Industry coiulucts investiirations of the various prob- 

 lems of dairy production, manufacture, and utilization, and the manufacture 

 and utilization of dairy by-products. New principles and metho<ls developed 

 in the iuvestiiiational work of the bureau are introduced into the field. The 

 bure. u also supervises the insi)ectiou of renovated-butter factories. 



BUREAU OF PLANT INDUSTRY 



Tlie activities of the Bureau of Plant Industry are primarily devoted to 

 plant research and related problems. This work includes the study of destruc- 

 tive plant diseases and the establishment of methods of eradication and control ; 

 the Improvement of crop, ornamental, or other iilants by breedin;; and selection; 

 the introduction of promising seeds and plants from foreign countries; the 

 improvement of methods of plant production; and the utilization of plants of 

 economic value. 



Campaigms to control or eradicate certain plant disea.ses are conducted in 

 cooperation with the authorities of the States concerned. The 13 States 

 interested in spring-wheat production are cooperatin,u to eradicate the common 

 !)arl)erry throuirhout this area as a means of controllini: epidemics of black 

 stem rust of wheat. The New Enj^land. Great Lakes, and Northwestern States 

 are cooperatinix in the eradication of th«> bhuk currant and related i>lants as 

 a means of controlling or iireventini: the spread of blister rust of white pine. 

 The rUilf States are coopcratinj; in the eradication of the canker of eitrus trees 

 and fruits. 



The regulatory activities are limited to the enforcement of the Federal Seed 

 Act. 



In addition to the exi^erimental activities of the iiureau at the Arlington 

 (Va.) Experiment l'"arm, which is immediately adjacent to the District of 

 < 'I'lumltia. the Inireau is operatinK field stati(»ns or lal)oratories in practicall.v 

 all tiie major cropping regions of the United StJites and is maintaining direct 

 cooperative experiments with the State agricultural colleges and exi>eriment 

 stations. 



FOREST SERVICE 



Tlie Forest Service administers the natiimal forests; cooperates with Stales 

 in maintaining organized jtrotection of forest lands against fire; conducts in- 

 vestigations in th(> entire field of forestry, iniluding economic and industrial 

 as well as forest research ; diffuses information relating to the best usi- of forests 

 and forest jjroducts; promulgates rules and regulations for IIh* administration 

 (if grazing on national-forest I'anges under general authority governing the 

 occupancy and use (if Ihe forests; and. in short, seeks to iiromoie the aiijilica- 

 tion of forestry throughout the country on both public and privately owned 

 lands, together with etfici( nt and e(Mnomical use of their yields. The national 

 fore.sts comjirise apjtroximalely IHT million acres of (;ov»'rnment-own«'d land 

 and contain apjiroximately <ine-tiftli of the iimlM>r in Ihe Iniled St.'Ues, lic^ides 

 furnishing forage and reire.it ion resources of great public value. Their 

 administration aims to coordinale and develop to the utmost their use in the 

 best public' inlercsl, Ihrougli applicalion of the technical methods of forestry 

 us a subdivision of Ihe arl of agriculture. Susl.aincd and, wlier(> iiossible, in- 

 creased yields of water, limber, and livestock products ar(> secured, together 

 with provision for nniny other forms of u.se, under ;'arefully devl.sed nninage- 

 ment plans und systematic protection of the forests against lire and oilier 

 destructive agencies. The management plans employ th(» sch-nlific n^gulation 

 of limber cutting and livestock grazing as mi-ans for siMuring reforestation 

 :inil range ( (inscrvation, along with full use of the annual growth obtained 

 through such regidation. 



BUREAU OF CHEMISTRY AND SOILS 



This bureau was created on July 1. r.»l!7. to lake over the research work in 

 chemistry and .soils formerly conduclt'd sepanilcjy in tlie Bureau of ('lien>- 

 istry and the Bureau of Soils. The work of Ihe bureau is organized under three 

 units. 



