514 INDEX. 



Page. 



Moth, peach, oriental, injury to various fruits, investigations 236, S49 



Motion pictures — 



activities of lUustrations Section 299-301 



use by Department for dissemination of information 38 



Motor — 



transportation of farm products, investigations 460-461 



truck ser\ice, work of Markets Bureau 481 



vehicles, number, and fees collected and used on roads 382 



Muck soils, subsidence, studies 390 



Mules, number, increase since 1914 6, 8 



Mustards, studies 217 



Mutton, production, increase since 1914 6, 8 



Napier, grass for forage 162-163 



Naval stores, investigations 215 



Nebraska, Niobrara Reservation, conditions, 1918 269 



Negroes, cooperative work of coimty agents in South 358 



Nelson, E. W., report as Chief, Biological Survey Bureau 257-275 



Nematode, sugar beet, studies 156 



Nevada, grazing lands, problems, discussion 173-174 



News Letter, Weekly, circulation and scope 36-37 



Nicotine, use against codling moth 235 



Nitrates, effect on wheat, studies 218 



North Dakota — 



ground squirrels, eradication work 261 



rodent extermination, work, 1918 18 



Sully's Hill Game Preserve, conditions, 1918 269 



Nosema, disease of adult bees, investigations 253 



Nursery stock, importations — 



by States, and by countries of origin 440-444 



restrictions 29 



Oak leaves, poisonous properties, studies 117 



Oats — 



early, for com belt, demonstration 163 



grades, work of Markets Bureau 471 



seed, treatment for smut control 361 



Object-lesson roads. See Roads. 



Ocean meteorology, work of Weather Bureau, 1918 64 



Ohio River flood, 1918, losses 65 



Oidiomycosis, cattle, investigations 114-115 



Oils, seed, investigations 221 



Ornithology, economic, work of Biological Survey 263 



Ostrichs, investigations, 1918 85 



Ozark region, farm- management problems, investigations 498 



Pacific States, farm-management problems, investigations 499 



Packing houses, supervision and regulation 51 



Page, L. W., report as Director, Bureau of Public Roads, 1918 373-392 



Paper makings 



use of flax straw, experiments 151 



work of Chemistry Bureau 216 



Parasites, animal, investigations 123-126 



Parcel post, marketing, investigations 9-10 



Parks, National, establishment in National Forests 170, 171 



Pastures — 



management on reclamation projects 148 



permanent, cooperative investigations 162 



Patent, drying leaf tobacco, to control black rot 156 



Patents, application by members of Department, status 421-424 



Peach, insects injurious, investigations 236, 249 



Pecans, growing and testing, work, 1918 152 



Pectin, use in jelly making, studies >. , 219 



Peranabru^ scabricollis, control 239, 248 



Periodicals, work of Library, and statistics 324-325, 327, 331-332 



Perishables — 



shipments, loading methods, improvement 464 



transportation, value of weather forecasts 59 



