546 INDEX. 



Food— Continued. Page. 



supply investigations 429 



surveys, work of Markets Bureau 436 



Foods — 



adulteration and misbranding, cases of interest 484-487 



digestibility, studies 388 



fermentation, studies 229 



imported, inspection 217-218 



spoilage and fermentation, studies by Chemistry Bureau 229 



Foodstuffs, exports, 1910-1919, discussion and statistics 5, 9 



Foot-and-mouth disease, outbreaks and control 74, 76, 112 



Forage crops — 



experiments 157 



insects injurious, investigations 247-249 



Forecasts, Weather Bureau, 1919 52-56 



Forest — 



products, research investigations 204-210 



resources — 



depletion 178 



Service — • 



cooperation with live-stock associations 193 



cooperation with States, in fire protection 203-204 



library, work, 1919 343, 346, 348, 349 



personnel, changes 179-181 



report, 1919 .- 177-210 



specialists, wood selection, cooperative work 385 



Forester, report, 1919 177-210 



Forestry — 



court decisions of interest 478-479 



extension, problems and needs 24-25 



litigation, general, work of Solicitor, 1919 477-478 



practice, extension to private forest lands. 177-179, 210 



Forests- 

 insects, investigations -■ 258-260 



investigations 209-210 



National — 



areas, eliminations and increases 182-183 



improvements, value 202 



increased acreage by acquisition and exchange 25 



legal work, office of Solicitor 472-473, 476-479 



receipts, expenses, areas, protection, and management 181-202 



reforestation of denuded lands, by States 189 



roads, mileage and cost, by States 409-411 



protection, expenditures, fire damages, extent and cause 183-186 



special uses, receipts, 1919 181 



Foundations, road ancl bridge, tests, Roada Bureau, 1919 423 



France, cattle shipments to 110 



Freezers, fish, investigations 222 



Frost warnings, work of Weather Bureau, 1919 50, 53, 66 



Fruit- 

 flies, distribution, studies 262-263 



fly, Mediterranean, control work 262 



Fruits — 



deciduous, insects injurious, investigations 250-255 



drying — 



demonstrations, Hawaii experiment station 362 



experiments 224-225 



frozen, handling methods 439 



grownng and use, Porto Rico 364 



market — 



grades, studies 437^38 



news service, reports and stations 439-440, 446-447 



subtroj)iral, investigations, 1919 141-145 



transportation and storage, protection 438-439 



tropical and subtroiMcal, investigations 260-261 



Fumigation — 



citrus treos, experiments 260, 261 



control of stored-product insects 250 



