INDEX. 659 



Page. 



Insect powder, adulteration 276, 608, 610 



Insecticide — 



Act, work of solicitor 584, 599 



and fungicide act, amendments, recommendations 52-53 



and Fungicide Board, report, 1920. 607-612 



Insecticides — 



adulteration and misbranding, actions against 608 



adulteration of insect powder 276, 608, 610 



dust experiments 315, 316, 330, 333 



inspection and investigations 607-612 



samples collected, interstate and import 609-610 



studies 275-277 



tobacco, testing 332-333 



Insects — 



apple investigations 314-315 



beneficial, parasitic and predatory 309, 314, 315, 327-328, 333 



cabl)age, control 320 



citrus, control 171-172 



control work 28-30 



destruction by birds 360-361 



greenhouse , control 338 



infestation of dried products, control studies 277 



injurious — 



to animals 28-30 



to cereal crops 307-311 



to cotton control 329-331 



to cucurbits, investigations 320 



to forage crops 307-311 



to forests 321-325 



to fruits 312-318, 337-339 



health of man and domestic animals 334-337 



Southern field crops 329-334 



stored products 311-312 



sugar cane. 333-334 



truck crops 318-321 



vegetables 318-321 



tobacco, control, use of lead arsenate 332-233 



See also Beetles; Flies, etc. 

 Inspection — 



animal diseases, field work 128-130 



butter — 



at markets 541 



by Dairy Division 111-112 



food products, instruction of inspectors 211 



imported plants and plant products 634 



market, fruit and vegetables 544-545 



meat — 



for other departments 124 



work report 118-125 



meats exempted from 122-123 



supplies for .Vrmy and Xavy , insect control 312 



Inspectors, food products, instruction 211 



Inrtrument work , Road Bureau 520 



Instrumentation , Weather liureau work 87 



Insular experiment stations, work and expenditures 456-465 



Insurance — 



fire, farmers' mutual, companies 21 



weather, for open-air entertainments. Weather Bureau forecasts for 68 



International Institute of Agriculture — 



activities, salary of delegate 16 



crop reports sent and received 409, 410 



Interstate commerce — 



game, supervision 343, 375-376 



live stock, sanitary work 130, 133 



Iodine, recovery from kelp 302, 304 



Iowa, land values, studies 571 



