INDEX OP SUBJECTS. 



973 



Page. 

 Nkotiana— 



spp., hybridization tests, U.8.D.A 428 



hybrids, studies '^30 



tabacum, correlation and inheritance In, 



Conn. State S^S 



Nlcotln , determination 14 



preparations, analyses, N.Y. State. . . 441 



variation in tobacco plant 830 



Mdor^^oawr/euioto, anaiyscsand digestibility. 871 



Niger seed cake, analyses 670 



Night soil, fertilizing value 337 



micro-organisms, ellect on soil 



productivity 722 



Nitragln, notes 322 



tests 322 



Nitrate deposits in Chile 619 



United States 22 



industry In Chile 24, 519, 723, 727 



Norwegian. (See Calcium nitrate.) 

 of lime. (See Calcium nitrate.) 

 Nitrate of soda- 

 effect on germination of dodder 28 



keeping quality of fruit 044 



soils 622 



fertilizing value 24, 32, 218, 337, 519, 530, 631 , 



534, 626, 639, 724, 8.32, 8^3, 837 



Del 338 



Ind 325 



Mich 137 



Va 430 



for canwtlons , N.H ^44 



production and use 7,21 



use 421 



against grape chlorosis 850 



in fertilizers, N.J 723 



Nitrates- 

 assimilation by Streptothrix C21 



In plant cells 3.'!2 



behavior In cul ti vatcd soils 020 



detection 8 



determination 1 1 1, 497 



flocculating power on clay C20 



formation in soils, N.J 721 



in soils 419 



manufacture from atmospliere 420 



reduction by Streptothrix 021 



use in Europe and Egypt 727 



United States .' 727 



utilization by i n'a seedlings 730 



Nitric acid, detection in watered fruit juices. . 411 



determination 009 



eflect on bread fermentation L'C8 



industry, status 128, 519 



manufacture from the air 023 



Nitrids indu.stry , status 128, 519 



Nitrification— 



as aflecteJ by carljon 322 



ether 131 



ground limestone 422 



In soils, studies 517 



Inhibition by alkali salts 124 



rOle of iJtreptothrix In 021 



Nitrites, determination Ill 



In potable waters 503 



Nitrogen- 

 activity, determination 496, 499 



ammoniacal, utilisation by corcplantiets. 034 



Page. 



Nitrogen— Continued. 

 assimilaLion 



by plan t roots 634 



plan ts 226 



royal palms, P.U 847 



Streptothrix 620 



from nitrates, ammonium salts, and 



asparagln 3.31 



atmospheric, fixation by aluminum nl- 



trid 325,624 



electricity 420 



utilization 520, 623 



availability in bat guano, I'.R 826 



balance In pot experiments 21 



combined , in rain 212 



compounds, manufacture from the air . . . 824 



containing bodies in grape leaves 731 



conUfut of parasitic and saprophytic 



plants 620 



wheat, studies flOO 



cycle In soils 517 



determination In betaln 814 



commercial ammoniates 8 



fertilizers 200 



flour 498 



meat extract 498 



nitrates 496 



water 497 



Kjeldahl method 409,804 



distribution during fasting 465 



fertilization, effect on development of 



wheat 38 



fertilizing value, Ind 324 



Va 4.36,437 



fixation as affected by stimuiants 131 



by aerobic organisms 729 



Azotobacter 517,828 



fungi 225 



In soils 419 



hurain, notes 671 



in alcoholic extracts of leaves 731 



lime. (See Calcium cyanamid.) 



loss from soils 321 



Fla 321 



in calcium cyanamld 824 



nitrate, determination in soils and fertil- 

 izers, Mich HO 



nitric, determination in mixed fertilizers. . (/lo 



production and movement in soils. 418 



organic, activity 200 



availablMty 205 



rCle in plant metabolism 20 



Nitrogenous- 

 compounds as affected by organic sub- 

 stances 026 



organic, as affected by manga- 

 nese oxid 726 



fertilizers- 

 artificial, status 619 



availability 620 



comparison . 24, 218, 519, 531, 626, 724, 832, 833 



eflect on citrus fruits, Fla 350 



composition of sugar beets. . 634 



Industry, status 128 



manufacture from air 520 



standard and new, notes 128 



materials, availability 600 



N.J 723 



