INDEX. 539 



Binding, work Page. 



appropriation and expenditures, 1919 303^ 305-310 



of Library, and annual needs 342-343 



Bins, grain, concrete and steel, testing 443 



Biochemic Divifiion, Animal Industry Bureau, work, 1919 124-129 



Bioclimatic law, studies 259-260 



Biological 



products, examination 122 



Survey 



Bureau, report of chief, 1919 275-298 



Library, work, 1919 347, 349 



of States, progress, 1919 289 



Bird- 

 counts, work of volunteer observers 289 



reservations 



location and work, 1919 292-293 



trespass law, enforcement bv Solicitor 492 



Birds- 

 distribution and migration, studies 288 



fish-eating, studies 285 



food habits, studies 285-288 



habits, study, 1919 284-288 



importation, work, 1919 297 



migratory 



Federal law, enforcement, details 284, 293-296 



treaty act, administration, violations, etc 293-296, 490-491 



wild, breeding grounds 289, 293 



protection laws, Lacey Act and Migratory-bird Treaty Act 284, 288, 293-290 



Bison, protection on game reservations, 1919 291, 292 



Bituminous road materials, testing, standardization 422 



Blackbirds, com damages in Ohio 286 



Black-chaff, wheat, cause and control 172 



Blackleg, vaccine, di3tribution and use 122 



Blephartpa scutellata^ introduction and value as parasite 265 



Blight, chestnut, resistant varieties of chestnut trees 158 



Blister rust, white pine, cause and control 175-176 



Bobolinks, injurious habits and open season, Atlantic States 286 



Boll weevil, cotton, control 267-268, 500 



BoUworm, pink, distribution and control work, quarantines, etc 505-512 



Bookkeeping, farm, investigations 466 



Books, library, accessions, number, circulation, etc., statistics 349-352 



Bordeaux mixtiu-es, investigations 500, 501, 502-503 



Borer 

 com 



European, introduction, spread, and control 512-517, 529 



European, study and control 247-218 



peach, control experiments 253 



Bots, horses, control and experiments 131, 503 



Boys' clubs 



' North and West, data 383-38 1 



South, enrollment, etc 374-375 



Breeding 



animal, work of department, 1919 78, 81, 82, 86, 86-87, 101 



grounds, migratory wild fowl 289, 293 



plant, experiments, 1919 150 1 52 



poultry, experiments 88 



Broom corn 



growing, experiments 140 



importations, introduction of European com borer 513 



Brown, William, service and death during war 392 



Brown-tail moth, investigations 263-266 



Bud selection, citrus fruits 142, 144 



Buildings, farm, drawings and plans, work of roads bureau, 1919 417-418, 419 



Bulbs, growing. United States 148-149 



Bull associations, cooperative 92 



Bulletins, contributions bv various bureaus 311 



