INDEX. 539 



Binding, work — ^*S®- 



appropriation and expenditures, 1919 303 305-310 



of Library, and annual needs 342-343 



Bins, grain, concrete and steel, testing 443 



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



Bioclimatic law, studies 259-260 



Biological — 



products, examination 122 



Survey — 



Bureau, report of chief, 1919 275-298 



Librarjs 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 by Solicitor 492 



Birds — 



distril)ution and migration, studies , 288 



fish-eating, studies 285 



food halnts, 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, 293-296 



Bison, protection on game reservations, 1919 291, 292 



Bituminous road materials, testing, standardization 422 



Blackbirds, corn damages in Ohio 286 



Black-chaff, wheat, cause and control 172 



Blackleg, vaccine, distribution and use 122 



Blepharipa scutellata, introduction and value as parasite 265 



Blight, chestnut, resistant varieties of chestnut trees 158 



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



Boliolinks, injurious habits and open season, Atlantic States 286 



Boll wee\il, 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 mixtiires, investigations 500, 501, 502-503 



Borer — 

 corn — 



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



European, study and control 247-248 



peach, control experiments 253 



Bots, horses, control and experiments 131, 503 



Bovs' clubs — 



" North and West, data 383-384 



South, enrollment, etc 374-375 



Breeding — 



animal, work of department, 1919 78, 81, 82, 85, 86-87, 101 



grounds, migratory wild fowl 289, 293 



plant, experiments, 1919 150-152 



poultry, experiments 88 



Broom corn — 



growing, experiments 140 



importations, introduction of European corn borer 513 



Brown, William, service and death dining war 392 



Brown-tail moth, investigations 263-266 



Bud selection, citrus fruits 142, 144 



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



Bulbs, growing, United States 148-149 



Bull associations, cooperative 92 



Bulletins, contributions by various bureaus 311 



