36 SOILS OF THE TRUCKEE-CAESON IRRIGATION PROJECT. 



Page. 

 Nitrate formed from nitrite, at Fallon, Xev 29 



Nitrification, definition and method of stndy, etc., at Fallon, Nev 7, 10-11 



of ^oil samples in solution at Fallon, Nev 12-25, 27-30 



Nitrite formed from ammonia, at Fallon, Nev 28 



Nitrogen, free, relation to presence of bacteria at Fallon, Nev 22, 31 



nitric, quantity originally present, in soil samples at Fallon, Nev. . 8. 12-20 



symbiotic and nonsymbiotic fixation, definition 7 



determination, at Fallon, Nev. 11 



Omelianski and Winogradsky, formula for fluid culture medium 19, 27, 28 



Peptone, ammonification in soil samples at Fallon, Nev 30, 31 



Dunham's solution, iise in denitrification studies at Fallon, Nev 11, 22 



solutions, composition, used at Fallon, Nev 9 



Potassium chromate, use in determining chlorids at Fallon, Nev 11 



nitrate, ingredient of peptone solution used at Fallon, Nev 11 



Remy, Theodor, on bacteriological investigations 9 



Rogers, S. J., and Scofield, C. S., on description of Truckee-Carson Experi- 

 ment Farm 8 



Schreiner, Oswald, and Failyer, G. H., on analyses of soils 11 



Scofield, C. S., on description of Truckee-Carson Experiment Farm 8 



Silver nitrate, use in determination of chlorids at Fallon, Nev 11 



sulphate, use for removal of chlorids at Fallon, Nev 11 



Sodium carbonate, presence in soils at Fallon, Nev 26, 28 



chlorid, use in peptone solutions at Fallon, Nev 9 



Soils, eastern and western, comparison of properties 12, 25, 33 



methods of treatment of samjiles at Fallon, Nev 8-11, 22, 26-27, 30, 31 



nitrification at different depths at Fallon, Nev 7, 12-20 



outline of plan of investigaticms at Fallon, Nev 7-8 



typical, detailed study at Fallon, Nev 25-32 



Suli)hate of ammonia. Sec Ammonium sulphate. 



Syme, W. A., on method of estimating nitrates 11 



Truckee-Carson Experiment Farm. See Fallon, Nev. 



Urea, use in removal of nitrites from nitrates at Fallon, Nev 11 



Yoorhees, E. B., and Lipman, J. G., on bacteriological investigations 24 



Winogradsky and Omelianski, formula for fluid culture medium 19, 27, 28 



211 



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