1920] 



INDEX OF SUBJECTS. 



971 



Neosymydobius, new genus erection, U.S. 



D.A., 758. 

 Neotermes, notes, 256. 

 Xeothomasia, new name, U.S.D.A., 758. 

 Xcotoxoptcra violw and its allies, 54. 

 Neotrama, new genus erection, U.S.D.A., 



758. 

 " Nerve bacillus," studies, 472. 

 Xcaomimesa hawaiienais, parasitic ou sugar 



cane lcafhopp(>r, Giil.'. 

 Netherlands Institute of Animal Nutrition, 



notes, 800. 

 Nettle meal, composition and digestibility, 



267. 

 Nevada — 



Station, notes, 498, 700. 



Station, report. 298. 



University, notes, 700. 

 New Hampshire — 



Collego and Station, notes, 199, 498. 



Station, report, 98. 

 New Jersey — 



Alfalfa Association, proceedings, 528. 



Stato I'otato Association, proceedings, 

 531. 



Stations, notes, 199. 

 New Jlexico Station — 



notes, 200. 



report, 397. 

 New York State Station — 



notes, 100, 200, 399. 498, 700, 799. 



report of director, .598. 

 Nicotln — 



preparations, analyses. N.,T., 37. 



sulphate, insecticidal value, Oreg., 756. 

 Nitragin, inoculation of legumes with, 217. 

 Nitrate — 



Chilean, as source of potash, 25. 



industry of Chile, 728. 



of ammonia. (See Ammonium nitrate.) 



of lime, (."^ee Calcium nitrate.) 



of potash. (Sec Potassium nitrate.) 



of soda. (See Sodium nitrate.) 



plants. Government, need for continu- 

 ous operation, 25. 



production from catalytic oxidation of 

 ammonia, 816. 



production in soils, HI., 214 ; Mo., 722. 



production, most active periods of. 111., 

 214. 

 Nitrates — 



absorption and storage by Amaranthus, 

 225. 



accumulation in soils, excessive, 216. 



as affected by sewage organisms, 791. 



effect on Azotobacter growth. Pa., 514. 



effect on color of apples, Oreg., 145. 



formation after clover and timothy, 215. 



in orchard soil, determination, Ind., 

 338. 



loss in uncropped land, 19. 



nitrogen determination in, 714. 

 Nitrification — 



as affected by alliali salts, 216. 



as affected by soil molsturo. Wash., 722. 



as affected by time of year, 124. 



In semiarid soils, 215. 



Nitrification — Continued. 



in soil.s, velocity of, Pa., 515. 

 in Texas soils, Tex., 724. 

 of ammonium sulphate, 215. 

 of bone meal, 215. 

 of dried blood, 215. 

 Nitrites, carbazol test for, 316. 

 -Nitrifying bacteria, isolation and studies, 



216. 

 Nitrogen — 



and hydrogen mixture, preparation, 



220. 

 availability in various fertilizers, Ala. 



Col. 135. 

 bacteria fertilizers, value of, 221. 

 content of oats as affected by fertili- 

 zers, 322. 

 content of soil as affected by cultiva- 

 tion and fertilization, Ohio, 725. 

 determination, 116. 

 determination in blood, 205. 

 determination in nitrates and fertili- 

 zers, 714. 

 determination, modified method, 13, 



316. 

 distribution in soils, studies, 18. 

 fixation — 



by electric arc, 323. 



by green plants, 430. 



in Germany, before and after the 



war, 426. 

 processes, 219, 627 ; U.S.D.A., 426. 

 symbiotic, relation to soil nitrogen, 

 625. 

 in blood, variability, 265. 

 inorganic, consumption and supply In 



United States, 425. 

 inorganic, demand in United States, 24. 

 inorganic, supply in United States, 24. 



420. 

 lime. (See Calcium cyanamid.) 

 loss from soil by drainage, 19. 

 loss in liquid manure, cause, 323. 

 manufacture, 627. 

 metabolism, formation of soluble starch 



in, 525. 

 metabolism of actinomycetes, 634. 

 metabolism of leaves, 729. 

 metabolism of milch cows, 270. 

 nitrate and organic, relative avail- 

 ability, 220. 

 nonprotein, of blood, 265, 266, 463. 

 partition in urine of races in Singa- 

 pore, 65. 

 Products Committee, British, report, 



218. 

 world's supply, control of, 323. 

 Nitrogenous fertilizers — 



comparison, 221, 232, 627 ; Can., 727 ; 



La., 627 ; N.C., 427. 

 laws in Germany, 221. 

 Nodule — 



bacteria, flagellation of, 43.'>. 

 (Sec also Bacillus radicicola, and Le- 

 gumes, inoculation.) 

 production, notes, 30. 



