INDEX. 673 



Tobacco — Continued. Paee. 



insect control 331-333 



mosaic disease, studies 332 



warehouse regulations, preparation 562 



Trails, forest, construction mileage, January-December. 1919 241-245 



Transjxirtation — 



farm products 559-5G0 



fruits and vegetables, methods studies 535, 563-564 



Trees — 



forest, diseases investigations 220 



planting studies 250 



Trespass. National Forests, damages and fines 586 



Trichinae, control in meat 151 



Trichinosis, investigations 150-151 



Tropical fruits, insects, control 338-339 



Truck crops — 



estimates, importance 415 



insects, investigations 318-321 



Thue, a. C, report as Director of the States Relations Service 445-489 



Tuberculin — 



distribution 147 



tests of imported cattle 127 



Tuberculins, testing 155 



Tuberculosis — 



animal, diagnosis 138 



cattle, eradication work, herds testing 30 



eradication, and accredited herds 30, 89-90, 132-133 



Twenty-eight hour law, work of solicitor 584, 597 



Twine, binder, production of fibers 183-184 



Tylenchus dipsaci, injury to clover, and control 210 



"Ultra clay." characteristics, separation from minerals in soil 292 



Utah, irrigation reconstruction work, results 523 



Vaccine, blackleg, distribution 139 



Vaccines, examination and testing 139 



Vanilla, gro\ving and value 461 



Vegetables — 



acreage and production 1914-1920 5, 6 



Alaska, growing 458 



canned, slack tilling correction 262 



driving investigations 277-278 



forcing, studies 176 



grades and standards 545-546 



Guam, gro^\-ing 463 



insects, investigations 318-321 



market — 



inspection 211 



news service, inspection and grading 541-543, 545-547 



surveys 546 



new, introduction 185-186 



Porto Rico, growing 461 



preservation in transit and storage 535, 563-564 



storage, inve-stigations 177 



transportation, metliods and studies 535, 563-564 



tropical, growing in Florida 185-186 



Virgin Islands, growing experiments 465 



See also Asp-iragiis; Beans; Cabbage; Chayote; Dasheen; Potatoes; Sweet 

 potatoes; Yams. 



Velvet beans, variety testing 189, 195 



Vermont — 



Middlebury, Government horse farm, work 101 



sheep breeding 12 



Vessels, live stock, inspection 128 



Vetches, testing 190 



Veterinary education, requirements 152-153 



Vinegar, orange, manufacture 273 



