CONTENTS. • V 



Page. 



Report of the Forester - 195 



National forestry policy 195 



Forestry in Alaska 199 



The personnel of the Forest Service 201 



National Forest receipts and expenditures 204 



The National Forest properties 205 



Protection 209 



National Forest management 216 



Research 238 



Informational and educational activities 247 



Report of the Chemist 251 



Introduction 251 



Researches in agricultural chemistry 252 



Agricultural chemical technology 257 



Work for other departments 272 



Color investigations 273 



Enforcement of regulatory statutes 275 



Report of the Chief of the Bureau of Soils 289 



Soil survey 289 



Chemical investigations 293 



Fertilizer investigations 294 



Concentrated fertilizers 295 



Nitrogen fixation 296 



Phosphate investigations 296 



Potash 297 



Soil physics ^ 297 



Report of the Entomologist 299 



Deciduous-fruit insect investigations 299 



Work on the gipsy moth and the brown-tail moth 304 



Cereal and forest insect investigations 306 



Stored-product insect investigations 309 



Tropical and subtropical fruit insects 310 



Vegetable and truck-crop insect investigations 314 



Southern field-crop insect investigations 317 



Insects affecting the health of man and domestic animals 320 



Insects affecting forest resources and shade trees 321 



Bee-culture investigations 324 



Insect pest survey 330 



Report of Chief of Bureau of Biological Survey 331 



Organization of the bureau 331 



Economic investigations 332 



Food habits research 346 



Biological investigations 349 



Protection of land fur-bearing animals in Alaska 353 



The Alaskan reindeer industry 355 



Game and bird reservations 357 



Migratory-bird treaty and Lacey Acts 362 



Publication and informational work 368 



Report of the Chief of the Division of Accounts and Disbursements 371 



Character of the work 371 



Work of the year 372 



Report of the Chief of the Division of Publications 377 



Summary 377 



Legislation affects periodicals 378 



