BIBLIOGRAPHY 1027 



57. J. N. Bronsted and — ,The separation of the isotopes of chlorine. Nature 

 July (1921). 



58. J. N. Bronsted and — , Uebor die Tronnung der Isotopon des Quccksilbers. 

 Z. pJnjs. Chem. 99, 189 (1921). 



69. J. Groh and — , Die Selbstdiffusionsgeschwindigkeit in festem Blei. An7i. 

 d. Fhijs. 65, 216 (1921). 



GO. Uebor den Materietransport im Kristall iind Kristallil. Z. Phys. 10, 80 

 (1922). 



01. An attempt to influence the rate of radioactive disintegration by use of pene- 

 trating radiation. Nature 110, 210 (1922). 



62. Ueber den Zusammenhang zwischen Warmeleitung und Elcktrizitatsleitung 

 in elektrolytischen leitenden Kristallen. Z. Phys. 10, 84 (1922). 



63. Ueber die Auflockerung von Kristallgittern. Z. phys. Chem. 101, 337 (1922). 



64. Ueber die Trennung von Isotopen. Oesterr. Chemiker-Ztg. 25, 80 (1922). 



65. J. N. Bronsted and — , The atomic weight of mercury from different sources. 

 Nature 109. 780 (1922). 



66. J. N. Bronsted and — , The separation of the isotopes of mercury. Phil. 

 Mag. January 31 (1922). 



67. Ueber die Auffindung des Hafniums und den gegenwartigen Stand unserer 

 Kenntnisse von diesem Element. Chemiker-Ztg. 47, 345 (1923). Ber. dtsch. 

 chem. Ges. 56, 1503 (1923). 



68. Note on the chemistry of hafnium. Chem. News 127, 33 (1923). 



69. On the chemistry of hafnium. Chem. Ind. 42, 929 (1923). 



70. Hafnium— a new element. Raw Materials Rev. March (1923). 



71. The absorption and translocation of lead by plants. Radioactive indicators. 

 Biochem. J. 17, 439 (1923). 



73. Bohrsche Theorie und Radioaktivitat. Naturwiss. 11, 27, 604 (1923). 



74. Ueber das neue Element Hafnium. Oesterr. Chemiker-Z., 26, 118 (1923). 



75. Jordens Alder. Medd. fra Dansk Geol. Forening 13 (1923). 



76. — and V. Thal Jantzen, The separation of hafnium from zirconium. Chem,. 

 News 127, 353 (1923). 



77. D. Coster and — , On the missing element of atomic number 72. Nature 

 111, 79 (1923). 



78. D. Coster and — , On the missing element of atomic number 72. Nature, 

 111, 182 (1923). 



79. D. Coster and — , On celtium and hafnium. Nature, April (1923). 



80. On the new element hafnium. Chem. Ind. 258 (1923). 



81. D. Coster and — , On the new element hainium. Nature 111, 252 (1923). 



82. D. Coster and — , Ueber das Element der Atomzahl 72. Naturwiss. 11, 

 133 (1923). 



83. The hafnium content of some historical zirconium preparations. Nature 113, 

 384 (1924). 



84. — and V. Berglund, Zircon and hafnium oxides. Chem. News, December 

 (1924). 



85. — and Viggo Berglund, The density of the oxides of zirconium and hafnium. 

 Trans. Chem. Soc. 125, 2372 (1924). 



86. — and V. Thal Jantzen, Der Hafniumgehalt von Zirkonmineiahen. Z. 

 anorg. und allg. Chem. 133, 113 (1924). Ibid. 136, 387 (1924). 



87. — and V. Thal Jantzen, Ueber den Hafniumgehalt einiger historischer 

 Zirkonpraparate. Naturwiss. 12, 729 (1924). 



88. — and Valdemar Thal Jantzen, The hafnium content of zirconium ores. 

 Chem. News 30 May and 20 March 1924. 



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