654 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



Fertilizer— P»B«- 



control, work of Soils Biiroau 293-294 



rciiiurcmciits of typical soil.s, Htudies 197 



Kertili/.crs 



adulteration, laws needed T)? 



(•oncontrat(Ml, preparation 293, 295, 300-301 



investigations 195-198 



resources invostij^ations 293 305 



sources. de\ clopnieit 40-41 



Fertilizing, citrus groves, furrow Byetem 172 



Fiber- 

 boards, investigations 282 



crops, growing and extension 183-185 



Field - . . . 



grinting, congressional restriction on 38()-387 

 ervice. Crop Estimates Bureau, work 415-420 



Figs- 

 insect, blastophaga, value 20 



Smyrna, growing in United States 181 



Films, motion picture, new, completed and released 391-393 



Finance, farm problems, study 20-21 



Fires- 

 dust explosions, control investigations 280-281 



forest, control work 46,227-230,245-246 



prevention, educational work 229 



Fireworm, cranberry, control 316 



Fish- 

 canned , adulteration , control 260 



cai\ning, stiidies 269-270 



handling, transportation, and storage, studies 270 



waste, hog feed tests 98 



Hax, varieties, ciulture, and diseases 171, 184, 200-201 



Flea- 

 beetle, tol)acco, control work 332-333 



dog, remedies, investigations 612 



Flies- 

 breeding, in excreta, prevention • 337 



fruit, control investigations 338-339 



horse, control studies 335 



house, control studies 336 



transmission of hog cholera 336 



Floods', warning service, work 72-73 



Floriculture investigations 177-178 



Florida — 



beef cattle breeding and feeding 9o 



bird reservations, work 369-370 



fruit insects, control 338 



tropical vegetables, growing 185-186 



Flour, grade, determination _ 272 



Flu, hog disease, symptoms 145-146 



Flume, Venturi, value as water meter •''24 



Flv, house, control 336 



Food— 



and Drugs Act- 

 amendments, recommendations 52 



enforcement. 256, 257-265, 584, 590-596 



control act, work of Solicitor ■ ^2'^'"*'?^ 



flora, studies ^^^"^I'l 



inspection, instruction of inspectors 211 



production — ^ en /inn 



Ha ,vaii, and utilization 459-460 



results of home demonstration work 471, 480 



products, inspection law, amendments, recommendations - 54 



spoilage, investigations ^^^"o^n 



value of proteins, chemical studies 269 



