Oxygen. 



519 



0550 



Kichel Chromates. 



Briggs, Samuel Henry Clifford. The 

 liexahydrated double chromates. . . . 

 [Nickel potassium chromate, 



K2Ni(Cr04)2,6H20 ; 

 nickel rubidium chromate, 



Rb2Xi(Cr04)2,6H20 ; 

 nickel caesium chromate, 



Cs2Ni(Cr04)2,6H20.] 

 London, J. Chem. Soc, 85, 1901, (677- 

 681) ; [abstract] London, Proc. Chem. 

 Soc, 20, 1901, (90). 



Nickel Molyhdates. 



Briggs, Samuel Heniy Clifford. [Am- 

 monio-nickel ammonium molybdate, 

 (XH4)2Xi(Mo04)2,2XH3.] London, J. 

 Chem. Soc, 85, 1901, (C72-677) ; [ab- 

 stract] London, Proc. Chem. Soc, 20, 

 1904, (89). 



Nichel Sulphate. 



Steele, Bertram Dillon and Johnson, 



F. M. G. The solubility curves of the 

 hydrates of nickel sulphate. London, 

 L Chem. Soc, 85, 1904, (113-1201; 

 [abstrac;] London, Proc. Chem. Soc, 19, 

 1903, (275). 



0550 (0) OXYGEN. 



Guertler, W. Ueber die Sauerstoff- 

 entwickelung aus dem Cuprimetaborat. 

 Zs. anor^. Chem., Hamburg, 38, 1904, 

 (456-460). 



He3ni, E. Ivupfer und Sauerstoff. 

 Zs. anorg. Chem., Hamburg, 39, 1904, 

 (1-23, mit 1 Taf.). 



Klinckert, Wilhelm. Dor Weltsauer- 

 stoff. Kosraischf" Betrachtungen. Dres- 

 den (E. Pierson), 1904, (V + 73). 

 19 cm. 2 M. 



Teclu, Nic Zur Darstellung des 

 Knallgase.s. J. prakt. Chem., Leipzig, 

 (N.F.), 69, 1904, (362-364). 



Thomas, J. C. A. Simon. Ueber das 

 Vorkomnien von Wasserstoff in Sauer- 

 stoffflaschen. Zs. anyew. Chem., 

 Berlin, 16. 1903, (964-965). 



Preparation. 



Blanchard, W. M. The action oE 

 hydrogen peroxide on cuprous chloride. 

 Indianapolis, Ind., Proc. Acad. Sci., 



1902, 1903, (200-202). 



Claude, Georges. Sur I'extraction de 

 I'oxygene par la liquefaction de I'air 

 avec retour en arriere. Paris, C.-R. 

 Acad, sci., 137, 1903, (783-786). 



Dewar, James. [The separation of 

 highly concentrated oxvijen from air.] 

 London, Proc R. Soc, 74, 1904, (122- 



127). 



Erdmann, Ernst und Bedford, Fred. 

 Ueber Reindarstellung und Eigen- 

 schaften des fliissigen Sauerstoffs. 

 Berlin, Ber. D. chem. Ges., 37, 1901, 

 (1181-1193). 



Le Suetir, Ernest A. Note on the 

 fractional condensation of air, with a 

 view to the commercial production of 

 oxygen. London, J. Soc. Chem. Indust., 

 23, 1904, (350-351). 



Mahin, Edward G. Investigation of 

 the action between manganese dioxide 

 and potassium chlorate in the produc- 

 tion of oxygen. Indianapolis, Ind., 

 Proc Acad". Sci, 1902, 1903, (170- 

 173). 



Ramsey, R. R. On the use of man- 

 ganese dioxide in the generation of 

 oxj-gen from potassium chlorate. 

 Indianapolis, Ind., Proc Acad. Sci., 



1903, 1904, (S9-91). 



Ransom, J. H. Action of heat on 

 mixtures of manganese dioxide with 

 potassium nitrate and with potassium 

 bichromate. Indianapolis, Ind., Proc. 

 Acad. Sci., 1902, 1903, (173-174). 



Riggs, R. B. The preparation of 

 oxygen. J. Amer. Chem. Soc, Easton, 

 Pa, 25, I'.IO;;, (87G). 



[Rommenholler, C. G.] Gewimiung 

 reinen Sauerstoffs nach dem Kass- 

 ner'schen Verfahren. Uhlands techn. 

 Rdsch., Leipzig, 1903, Ausg. 3, (15- 

 16). 



Physical Properties. 



Alt, U. Ueber kalorimetriscbe Mes- 

 simgen an fliissigein Sauerstoff und 

 fliissigem Stickstoif. Ann. I'liysik, 

 Leipzig, (4. Folge), 3, 1904, (1010- 

 1027). 



