508 INDEX. 



Fertilizers— Continued. _ ^*^®- 



substitutes, examination _ 160 



surveys, work of Markets Bureau 455-456 



use, increase, under extension work 363 



Fibers, binder-twine, work, 1918. --_----. ^ll 



Field crops. Southern, insect investigations 243 



Fig, caprification, work in Southern States - 163 



Films, production and distribution, work of Illustrations Section 299-300 



Fires- 

 forest — 



control, appropriation need 41-42 



prevention in National Forests, numbers and losses 166, 174-178 



mill, elevator, and thrasher, control work 211 



National Forests, 1917, extent and causes 177 



Fish- 

 preservation methods, work of Chemistry Bureau 208-209 



shipment, supervision by Chemistry Bureau 210-211 



spoilage studies 220 



Flax— . 



straw, utilization for paper making if>i 



winter, experiments 163 



Fly, melon, quarantine of Hawaiian fruits 247 



Flood service. Weather Bureau work, 1918 65-66 



Florida — 



bird reservations, conditions, 1918 270 



camphor-growing progress 163-164 



Food — 



Administration work, cooperation of Chemistry Bureau 211-212 



adulteration, suppression by Chemistry Bureau 203, 204, 205-206, 220 



and Drugs Act- 

 administration and cases of interest 407-415 



enforcement by Chemistry Bureau 202-208 



conservation and production, 1918 291-293 



Control Actj assistance of Solicitor 393, 420 



emergency production, activities of Department ^ 52-53 



inspection for Army and Navy supplies 75-76, 92, 93, 103 



poisoning, studies 220 



Production — 



Act, administration, assistance of Solicitor 393, 4J1 



and conservation, work of Extension Office 336, 348, 353, 



354, 356, 360, 362, 363, 364, 366 



products— 



inspection, organization and work, 1918 zd-z4 



inspection ser\dce 480-481 



spoilage and fermentation, studies. Chemistry Bureau ^^^ n^ 



substitutes, examination. Chemistry Bureau ^o ^k^ 



supply, investigations by Markets Bureau "* cf 



surveys, work of Markets Bureau ;cq Icn 



transportation and storage, investigations 459, 460 



Foods — ' .„ 



exhibit, Hawaii, at Territorial fair g^/ 



imports, adulteration ^^ 



utilization, studies _ ?j^ 



Foot-and-mouth disease, inspection 1"' 



Forage— . . 9^7-240 



insects, injurious, investigations •^^^ ^^" 



poisoning, cause, study kA «i cq 



Forecasts, Weather Bureau, 1918 b9-bi, by 



Forest— At -49 



fires, control, appropriation need i^n Too 



management, work of Forest Service, timber, grazing, etc i7y-iyz 



National— . . , irr iq9 



areas, changes, management, uses, receipts, etc {"aZT 7^ 



land classification and elimination Qaollnr 



laws, administration, decisions, etc -_ ^v^nvn 



protection from fires, insects, and rodents !'''>, {^^"{^^ 



purchase areas in Appalachians, location and acreage 169, 17^ 



roads, surveys and construction ^°" 



