INDEX OF SUBJECTS. 



977 



New York Stale— Page. 



Agricultural Society, proceedings 894 



Station, notes 300 



Nickel in soils, U.S.D. A 720 



Nicotin, determination 613, 714 



Nicotinic acid in rice bran 714 



Nile river delta, fertility map 119 



Nipapalm fiber, tests 526 



Nitocris princeps, notes 61 



Nitrate- 

 deposits, origin 724 



industry in Chile 724 



Norwegian. (See Calcium nitrate.) 

 of lime. (See Calcium nitrate.) 

 of soda. (Sec Sodium nitrate.) 



production by Azotobacter 421 



reduction in sterilized soils 121 



reduction without anaerobic conditions. . 127 

 Nitrates- 

 assimilation by mold fungi 223 



bacterial destruction 819 



detection in milk 508 



determination in alkali soils 206 



determination in soils 516 



effect on composition of sugar beets 435 



effect on oat seedl ings 231, 528 



formation in puddled soils 127 



in Colorado soils 619 



manufacture from peat 321 



reduction by bacteria 324 



Nitric acid — 



destruction of stumps by 92 



determination in presence of nitrous acid. 503 



in rain water 812 



manufacture 822 



Nitrification — 



as affected by irrigation and crop produc- 

 tion 119 



as affected by metallic salts 120 



as affected by organic substances 223 



in cultivated soils 722 



in fallow soils 722 



in pasture soils 516 



in soils 318,420 



in soils, Colo 818 



in soils, Oreg 818 



in soils as affected by sulphur 125 



in solutions 420 



of organic manures 723 



Nitrites — 



determination in presence of nitrous acid . 503 

 effect on determination of oxygen in 



water 411 



Nitrobenzol, determination in peanut oil 413 



Nitrogen — 



absorption by oats 632 



absorption by soils, Hawaii 723 



accumulation in continuous rye culture. . 318 



amino, determination 610, 808 



ammoniacal, determination 109 



assimilation as affected by humus 120 



assimilation by leguminous plants 523 



assimilation in presence of nitrates 121 



atmospheric, assimilation by plants 223 



atmospheric, fixation by electricity 622, 822 



determination 205 



determination in urine 502, 610 



Nitrogen— Continued. Page, 



fixation as affected by soluble humates. . 516 



fixation by aerobic micro-organisms 721 



fixation by grass-green algee 827 



fixation in soils, Colo 818 



fixation in soils, Nev 24 



fixation in soils as affected by sulphur. . . 125 



in dry-farm soils 318 



in muscles of invertebrates 861 



injurious, determination in sugar beets. . 315 

 lime. (Sfc Calcium cyanamid.) 



loss from maniu'e, prevention 320 



organic, in Hawaii soils, Hawaii 11 



peroxid, effect on flour 162 



transformation in Actinomycetes 324 



transformation in soils 818 



Nitrogenous — 



compounds, inorganic, assimilation by 



plants 223 



fertilizers, availability 318 



fertilizers, availability, N.J 124 



fertilizers, comparison. . 36,517,518,820,821,822 

 fertilizers, effect on composition of 



beets 737 



fertilizers, effect on flax fiber 332 



fertilizers, effect on grapes, N.Y.State 339 



fertilizers, effect on yield of cotton. Miss. 136 



fertilizers for oats 528 



fertilizers for rye 529 



substances, determination in flour 809 



Nitron, use in determination of nitrates in 



soil 516 



Nitrous- 

 acid in rain water 812 



oxid as an anesthetic 80 



Noctuidae in British Museum, catalogue 652 



Noodles, notes, N.Dak 658 



North Carolina- 

 College, notes 696,900 



Station, notes 900 



North Dakota Station- 

 notes 497 



report 694 



Novius cardinalis, destructive to fluted scale. 60 



Nuclein, assimilation by ruminants 71 



Nun moth, studies 251, 454 



Nursery — 



inspection in Arizona 155 



inspection in Tennessee 248 



inspection in Union of South Africa 548 



stock diseases, descriptions, N.J 448 



Nut butter, notes 176 



Nutrients, organic, behavior in cell metabol- 

 ism 361 



Nutrition — 



amino acids in 558 



animal. (See Animal nutrition.) 



effect on mental development 557 



in children 463 



investigations of Office of Experiment 



Stations, U.S.D.A 359 



of the masses, economic effects 462 



plane, effect on breeding cattle, Mo 367 



plant. (Se€ Plant nutrition.) 



treatise 262, 263, 760 



work of Prussian Board of Health 857 



(See also Digestion, Metabolism, etc.) 



