48 



L. vegard: on the x-ray spectra. M.-N. K1. 1920. No. 2. 



Further the atomic properties may greatly depend on the constitution 

 of the ring next to the surface system. 



Thus the scheme here given for the surface systems may be es- 

 sentially right as far as it goes; but it does not give the whole me- 

 chanism of atomic constitution. 



Fysiske Institut. 15. Sept. 1918. 



Printed January 20*", 1921 



