Tidsskrift for Physik og Chemi

Tidsskrift Phys. Chem. Tidsskrift for Physik og Chemi. Copenhagen. 

Julius Thomsen, Om de saakaldte Grundstoffers Natur [On the nature of the so-called elements]Tidsskrift for Physik og Chemi 4 (1865) 65-115. On Thomsen s speculations on composite atoms, see Helge Kragh, Julius Thomsen and 19th-Century Speculations on the Complexity of Atoms, Annals of Science 39 (1982) 37-60. 

Odin T. Christensen, Meddelelser om Germanium [Communication concerning Germanium], Tidsskrift for Physik og Chemi 25 (1886) 256-263, on 257. 

Odin T. Christensen, Berylliums Atomvaegt [The atomic weight of beryllium], Tidsskrift for Physik og Chemi 23 (1984) 310-311, on 311. On the beryllium anomaly, see Jan W. Van Spronsen, The Periodic System of Chemical Elements A History of the First Hundred Years (Amsterdam Elsevier, 1969), 300-302. 

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