940 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE.. 



Now M(>xico, hiolopical Mir\fy, conipk'tion 127 



r-.xu'^i' caterpillar, invest ijrations ")30-53l 



'. M-lcans lal)()ral()ry, food and diiiy; insjx'ction work, l!)iO 4G9 



York lalioralory, food and dru;j; insix'ction work, lillO 470-472 



Xitritos, pharmacological stndios 445 



Nitrogen, atmospheric, nianufacluring melhuda, studios 502 



(lotorniination methods, Ptudies by Chemistry Bureau 484-485 



(ixalion and use as fertilizer 502 



Nitrogon-paihering bacteria, wt)rk 288 



North Carolina, expi-riments with seedless Chinese ])ersimmons 79 



study of strawberry insects by Entomology Bureau 532-533 



tobacco investigations 318 



Dakota, diversified farming. 329 



Experiment .Station, tests of Ilolstein cattle for tuberculosis. . 214 



reconnoissance surveys, 1910 409-500 



Notices of Judgment , cases of year 804-846 



Nurseries, National P^orests, location 387 



Nursery stock, European countries, study of inspection methods 543 



inspection for insect control 119 



work, Arlington Ex j)erimental Earm 339 



Nutrition, animal, comparative studies of glucose and cane sugar 449 



experiments at State College, Pennsylvania 217 



investigations. Experiment Stations Office, purpose and history. . 148-150 



work, plans for future, etc 765-766 



work, ])ractical value, demonstration 149-150 



Nuts, cashew, analysis and testing 464-465 



Oat investigations, remarks 66-67, 313 



Oats, bleaching, investigations 456 



crop, 1910, value and yield 13 



Object-lesson roads, work of year 153 



Observatory buildings, new, construction 191 



Weather Bureau, owned and rented 19] -192 



Mount Weather, work, 1910 161-166 



Ocean charts, description, niimber issued, etc 622 



Office of Public Roads. See Roads, Public, Office. 



Ohio, experiments in timothy breeding 84 



Oil and oil-cake meal, exports, value, 1910 18 



Haarlem, misbranding, investigations by Chemistry Bureau 460 



olive, adulteration with other oils, studies 458 



denaturants, inspection by Chemistry Bureau 471 



peanut , commercial possibility 340 



producing plants, studies 60 



production, use of soy beans 327 



soy-bean, use in oleomargarine manufacture, study 267 



volatile, experiments 296 



wood, tree, Chinese, introduction and value 78 



Oil-cement concrete investigations. Public Roads Office 157 



Oils, action on metals, laboratory studies 268 



citrus, laboratory investigations - 437-438 



edible, cooperative studies of soy-bean and peanut products 439 



essential, misbranding, investigations 440-441 



samples, collection by inspectors 456 



Oleomargarine, manufacture from imported oleo stearin 245 



Olive oil, adulteration with other oil, studies 458 



denaturants, inspection by Chemistry Bureau 471 



oil-making varieties, note 142 



Olives, imported, wormy condition, studies 451, 457 



Olmsted, Victor H., report as Chief of Bureau of Statistics 695-722 



Omaha laboratory, food and drug inspection work, 1910 472-473 



Onion investigations, remarks 341 



thrips, control, studies in various States 533-534 



Operation Branch of Forest Ser\ace, plans for future work 421-422 



Orange groves, protection from insects 117-118 



rust of apple, prevalence, control, work, etc 54 



thrips, control, studies 535-536 



