1918] 



INDEX OF SUBJECTS. 



969 



Nitrification — Page. 



and soil toxins, studies 322 



as affected by alkali salts 322 



in soils, U.S.D.A 211 



of organic compounds in soils, 



Ala.CoIiege 119 



Nitrites from nitrates by sunlight, 



U.S.D.A 811 



Nitrobenzol as a parasiticide 760 



Nitrogen — 



amino acid, determination lo 



blood 713 



amino, determination, foam in- 

 hibitor 613 



ammonia, determination 311 



and carbon, equilibrium in 



soils 421 



assimilation by rice 340 



atmospheric, fixation by elec- 

 tricity 122, 311, 325, 423, 625 



atmospheric, fixation in soils, 



Tenn 213 



determination In bacterial cells- 613 

 distribution in protalbinic and 



lysalbinic acids 310 



economy in Tennessee soils, 



Tenn 212 



fixation as affected by sodium 



nitrate 723 



fixation by bacteria 426, 427 



fixation by leguminous plants 528 



fixation by plants 122 



fixation in manure 27, 325 



fixation, relation to green ma- 

 nures 27 



in cultivated and abandoned 



lands 622 



in rain and snow 416 



lime. (See Calcium cyanamid.) 



loss from peat beds, prevention. 514 



loss in green manuring, Ohio 622 



nitric, determination in soil 111 



nonprotein, determination in 



fiour 614 



total and soluble. In fiour 711, 712 



Nitrogenous fertilizers — 



availability in presence of so- 

 dium nitrate 723 



comparison 133, 516 



comparison. Pa 220 



comparison, S.C 517 



Nodes, branch, nature 822 



Nomon, a calculating device for 



chemists 204 



North Carolina College and Station, 



notes 97 



North Dakota College and Station, 



notes 799 



Notanisomorpha meromyzae n.sp., de- 

 scription 165 



Notarcha (Na^oleia) ocstasema, biol- 

 ogy and remedies 59 



Nucleic acid — 



derivatives in peat 202 



nitrification as affected by lime, 



Ala.CoIiege 119 



82481°— 18 7 



Nucleic acid — Continued. Page, 



plant, preparation 505 



Nuclein, humification 26 



Nursory — 



inspection in Maine 344 



inspection in Minnesota 155 



inspection in Wisconsin 155 



inspection law in New York 39 



inspection laws and regulations 



in United States 39 



inspection laws in Canada 40 



stock, fumigation 357 



stock, imported, insects collected 



on 857 



Nurudea n.g. and n.sp., description 857 



Nurudeopsis n.g. and n.sp., descrip- 

 tion 857 



Nut- 

 butters, accessory growth sub- 

 stance in 265 



grass, eradication, Hawaii 828 



margarin, manufacture 807 



oils, digestibility, U.S.D.A 867 



Nutrient solutions — 



hydrogen- and hydroxyl-ion con- 

 centrations 736 



physiological balance 730 



Nutrients, absorption by plant roots, 



P.R 728 



Nutrition — 



defective, in school children, 



determination 664 



essentials of, Conn. State 662 



of farm animals, treatise 268 



science of, treatise 468, 661 



(See also Digestion, Metabol- 

 ism, etc.) 



Nutrose, substitute for 710 



Nuts' — 



culture along highways 44 



culture experiments, N.Mex 641 



culture experiments, U.S.D.A 444 



planting in eastern United 



States 542 



varieties, N.Mex 641 



Oak— 



cossid on pecan, U.S.D.A 157 



pruner on pecan, U.S.D.A 157 



Oaks — 



preserving 554 



white, ray trachelds in 45 



Oat— 



aphis in Maryland 154 



aphis, correct name — 462 



crown rust, studies. Mo 645 



feed, analyses 369 



feed, analyses, N.H 369 



fiour, analyses. Can 666 



groats, analyses. Mass 665 



hulls, analyses 369 



hulls, analyses, N.Y.State 67 



hulls, ground, analyses, Tex 369 



seedlings, hypocotyl develop- 

 ment 525 



smut, notes 848 



