506 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



LIST OF ARTICLES FROM THE FIXED NITROGEN RESEARCH LABO- 

 RATORY IN SCIENTIFIC AND TECHNICAL JOURNALS CHRONO- 

 LOGICALLY ARRANGED TO DATE. 



Motion of Droplets and Particles in the Field of the Corona Discharge. R. C. Tolman 

 and S. Karrer, Chem. and Met. No. 26, June 30, 1920. 



The Entropy of Gases. R. C. Tolman. Jour. Amer. Chem. Soc, i2, 6, June, 1920. 



Pressure Measurements of Corrosive Gases The Vapor Pressure of Nitrogen Pentoxide. 

 F. Daniels and A. C. Bright. Jour. Amer. Chem. Soc, 1,2, 6, June, 1920. 



Relativity Theories in Physics. R. C. Tolman. General Electric Review, June, 1920. 



The Heat of Absorption of Vapors on Charcoal. A. B. Lamb and A. S. Coolidge. 

 Jour. Amer. Chem. Soc, p, 6, June, 1920. 



Gas Analysis by Absorption and Titration. R. S. Tour. Chem. and Met., vol. 23, 

 No. 23, Dec 8, 1920. 



Statistical Mechanics Applied to Chemical Kinetics. R. C. Tolman. Jour. Amer. 

 Chem. Soc, ^2, 12, Dec, 1920. 



The Thermal Decomposition of Gaseous Nitrogen Pentoxide. A Monomolecular Re- 

 action. F. Daniels and E. H. Johnston. Jour. Amer. Chem. Soc, iS, 1, Jan., 1921. 



The Photochemical Decomposition of Nitrogen Pentoxide. F. Daniels and E. H. 

 Johnston. Jour. Amer. Chem. Soc, iS, 1, Jan., 1921. 



Note on the Theory of Monomolecular Reactions. R. C. Tolman. Jour. Amer. Chem. 

 Soc. iS, 2. Feb., 1921. 



The Principle of Similitude and the Entropy of Polyatomic Gases. R. C. Tolman. 

 Jour. Amer. Chem. Soc, iS, 4, Apr., 1921. 



Government I'"ixed Nitrogen Research. R. C. Tolman. Chem. and Met. Eng.,, vol. 24, 

 No. 14, Apr., 1921. 



The Entropy of Electron Gas. R. C. Tolman. Jour. Amer. Chem. Soc, i3, 7, July, 1921. 



The Thermal Ionization of Metallic Vapors. R. C. Tolman. Jour. Amer. Chem. Soc, 

 is, 7, July, 1921. 



The Relation Between Statistical Mechanics and Thermodynamics. R. C. Tolman. 

 Jour. Amer. Chem. Soc, U, 1, Jan., 1922. 



A Metliod oif Determining Traces of Oxygen in Hydrogen. A. T. Larson and E. C. 

 White. Jour. Amer. Chem. Soc, U, 1. Jan., 1922. 



Occurrence of Nitrides and Oxides in Boiler Tube Steel. A. E. White and J. S. Vanick. 

 Transactions of American Society for Steel Treating, Vol. II, No. 4, 323, Jan., 1922. 



Apparatus for Small Scale Testing of Ammonia Catalysts at Atmospheric Pressure. 

 A. T. Larson, W. L. Newton, and W. Hawkins. Chem. and Met., vol. 26, March, 1922. 



Apparatus for Moderate Scale Testing of Ammonia Catalysts at Variable Pressures. 

 A. T. Larson and A. P. Brooks. Chem. and Met., vol. 26, March, 1922. 



Apparatus for Moderate Scale Testing of Ammonia Catalysts at 100 Atmospheres Pres- 

 sure. R. S. Tour. Chem. and Met., voL 26, March, 1922. 



Behavior of a Type of Iron Catalyst in Ammonia Eynthesis. A. T. Larson and R. S. 

 Tour. Chem. and Met., vol. 26, Apr., 1922. 



The Elfect of Pressure on Catalytic Activity. A. (T. Larson. Chem. and Met., vol. 26, 

 Apr.. 1922. 



Review of the Present Status of the Two Forms of Quantum Theory. R. C. Tolman. 

 Journal Optical Society, Vol. VI, No. 3, May, 1922. 



A Process for the Synthesis of Urea from Ammonia and Carbon Dioxide. N. W. Krase 

 and V. L. Gaddy. Jour. Ind. and Eng. Chem., vol. 14, No. 7, July, 1922. 



The Chemical Properties of Some Chrome-Vanadium Steels. J. S. Vanick. Transac- 

 tions of American Society for Steel Treating, September, 1922. 



Thermodynamic Treatment of the Possible Formation of Helium and Hydrogen. R. C. 

 Tolman. Jour. Amer. Chem. Soc, U, September, 1922. 



Developments in Nitrogen Fixation. J. M. Braham, Jour. Ind. and Eng. Chemistry, 

 vol. 14, No. 9, September, 1922. 



Mechanism of Guanidine Formation in Fused Mixtures of Dicyanodiamide and Am- 

 monium Salts. J. S. Blair and J. M. Braham. Jour. Amer. Chem. Soc, U, No. 10, 



The Oxidation of Nitrogen Tetroxide by Oaone. O. R. WuLf, F. Daniels, and S. Karrer. 

 Jour. Amer. Chem. Soc, U, November, 1922. „ ^ , , ^ „ 



The Decomposition of Nitrogen Pentoxide in the Presence of Ozone. F. Daniels, O. R. 

 Wulf, and S. Karrer. Jour. Amer. Chem. Soc, W, November, 1922. 



Preparation of Pure Ozone and Determination of Its Molecular Weight. S. Karrer 

 and O R. Wulf. Jour. Amer. Chem. Soc, H. November, 1922. 



Determination of Total Nitrogen in Mixtures Containing Cyanamide and Nitrate 

 Nitrogen by Application of the Davisson-Parsons Method. K. D. Jacob and W. J. Gel- 

 dard. Jour. Ind. and Eng. Chem., U, November, 1922. 



Control Devices Employed in the Testing of Ammonia Catalysts. A. T. Larson and 

 S. Karrer. Jour. Ind. and Eng. Chem., U, November, 1922. 



Glass Pressure Gage. S. Karrer, E. H. Johnston, and O. R. Wulf. Jour. Ind. and 

 Eng. Chem., U, November, 1922. 



The Absorption of Carbon Monoxide by Cuprous Ammonium Carbonate and Formate 

 Solutions. A. T. Larson and C. S. Teitsworth. Jour. Amer. Chem. Soc, U, No. 12, 

 December, 1922. 



Note • Regulator Circuit. A. T. Larson. Jour. Amer. Chem. Soc. U, No. 12, Dec, 1922. 



Note on Dispensing Bottle for Concentrated Alkali Solution. W. J. Geldard. Jour. 

 Ind and Eng. Chem., vol. 15, No. 2, February, 1923. 



Hydrolysis and Polymerization of Cyanamide. H. C. Hetherington and J. M. Braham. 

 Jour. Amer. Chem. Soc, 1,5, No. 3, March, 1923. 



Further Experiments on the Mass of the Electric Carrier in Metals. R. C. Tolman, 

 S Karrer, and E. W. Guernsey. Physical Review, 21, No. 5, May, 1923. 



' The Determination of Urea Alone and in the Presence of Cyanamide by Means of 

 Urease E J. Fox and W. J. Geldard. Jour. Ind. and Eng. Chem., 15, No. 7, July 1, 1923. 



