INDHOLD 



Side 



Fortegnelse over Selskabets Medlemmer November 1923 V — ^XVII 



1. Bohr, N. : On the Quantum Theory of Line-Spectra. Part I— III 1—118 



2. Warming, Eug.; Økologiens Grundformer. Udkast til en systematisk Ordning 119 — 187 



3. Wesenberg'-Lund, C. : Contributions to the Biology of the Rotifera. With 15 Plates 



and 17 Textflgures 189—345 



4. Hertzsprung, Ejnar: Effective Wavelengths of Stars in the Pleiades from Plates 



taken at Mount Wilson. With 4 Figures and 1 Map 347 — 407 



