674 INDEX. 



Page. 



Urea, synthetic production, investigations 640 



Utah, rodents destruction 338, 340, 343 



Utensils, dairy, sterilizing 119, 120 



Vaccine, blackleg, preparation and distribution 148 



Van Fleet, Walter, collection rose varieties 183 



Vegetables — 



canning, studies 456 



cull, utilization 270-272 



grading 18 



growing in Hawaii 429 



importations under quarantine 49, during 1922 621-622 



inspection work 509-510 



investigations, work of Plant Industry Bureau 184-186 



marketing investigations 506-511 



Velvet beans, new varieties 167 



Vermont — 



gypsy-moth spread and quarantine areas 304 



sheep-breeding experiment ^ 108 



Vessel weather reports, cooperative 71 



Veterinary education, conditions 103 



Vinegar inspection 282 



Virgin Islands Experiment Station, work and expenditures 426, 435-437 



Virus — 



commercial, testing in hog-cholera work 150 



production and supervision 158 



Viruses, rat, testing 146 



Virus-Serum Control Division, report of work 158. 



Vitamins in meat, studies 102, 152 



Vocational Education, Federal Board, cooperation with 417, 419 



Volcanology studies, Hawaii 94 



Wallaby, species, importations 367 



Wallace, Henry C, report as Secretary of Agriculture 1-64 



Walton, W. R., cereal and forage insects investigations 306-309 



War- 

 Department, cooperation in horse-breeding work 110 



Finance Corporation activities, help to farmers 10 



material, surplus distribution 489-490, 502 



Warbles, ox — ■ 



control work 155 



investigations 320 



Wardens, game. United States officials, work 363 



Warehouse Act, administration 20-21, 540-541 



Warnings- 

 cold waves, frosts, etc.. Weather Bureau 70, 80-82 



flood, results 78, 79 



hurricane, Weather Bureau 71 



Wart, potato, control work 612, 626 



Wlashington — 



frost service for cranberry growers 81 



rodents extermination 340, 341, 343 



cotton, imports 1921-1922 617 



elimination in wood-using industries, studies 241 



Wastes — 



agricultural, furfural yield 261 



wool-scouring, recovery and utilization 264 



Water — 



irrigation, quality relation to impermeable soils 186-187 



power permits, National Forests 231-232 



Waterprooflng fabrics, experiments 267 



Waters, mineral, examination 280 



Watersheds, reforestation 196-197, 198 



