INDEX. 657' 



Grades— Pae«- 



fruits and vegetables 545-546'- 



■ft'ool , preparation and distribution 536, 538, 558 



Grain — 



cleanine; investigations 553 



growing — 



destruction by rodents 348, 350 



in Alaska 458 



marketing, investigations 551-554 



standards act — 



amendments, recommendations 53 



enforcement 551-553, 580, 581, 584, 602- 



warehouses, regulations for administration 560-561 



See also Barley; Corn; Oats; Rye; Wheat. 



Grape, insects, investigations 315-316 



Grasses — 



destruction by rodents 348, 349- 



new. study and introduction 33 



pasture, investigations 191 



susceptibility to Plulippine downy mildew 205 



Grasslioppers, outbreak in North Dakota, and control 309-310 



Grazing, National P'orests, animals, fees, and management 48, 2.34-238, 252-254 



Great Plains — 



Northern, dry-farming experiments 186-187 



soil investigations 290 



Greeley, William B., report as Forester 221-254 



Greenliouses, insect control 338 



Ground squirrels, extermination 348-349 



Grove City Creamery, products and output Ill, 112 



Guam- 

 Experiment Station, work, 1920 456, 462-464 



live-stock, breeding 462-463 



Gulf States, sweet-potato weevil, control work 318-319 



Haber process, nitrogen fixation, transfer of apparatus to American University. 295 



Hatch Act, response by States 454 



Hawaii — 



agricultural products, entry into United States, restrictions 623, 638 



Experiment Station, work 456. 459-460 



su»ar reports, work of Crop Estimates Bureau 411. 412 



Hawaiian Islands — 



Bird reservation 372" 



volcanological observations 86-87 



Hay— 



and Grain Sliow, International, exnibit from Department 394 



crop, 1920, remarks bv Secretary 3 



destruction by rodents 248, 349, 350 



feeding to elk in winter refuge, cost 367 



marketing, and market news service 554-555 



Haywood, J. K.: report as chairman of Insecticide and Fungicide Board — 607-612' 



HealtJi, insects affecting 336-337 



Heater, railway car, design for protection of fruits and vegetables 535 



Eelenium hoopesii, investigations 141 



Hellebore root, investigations 611 



Hemp, growing improvement 184 



Herds, accredited, tuberculosis-free 89-90, 132' 



Hessian fly, control work 4 



Hides — 



imported, certificates 127 



skinning, curing, and marketing 280 



Higliway— 



department — 



State, road mileage supervised 500 



States, cooperation with Government 508, 509 



Officials, State Association work 43-44 



weather service, work 69' 



