DISTRIBUTION OF MATTER IN THE 

 HIGHEST STRATA OF ATMOSPHERE 



THIRD COMMUNICATION 



BY 

 L. VEGARD 



WITH 6 FIGURES IN THE TEXT 

 (ViDEXSKAPSSELSKAPETS SkRIFTER. I. MaT.-NATURV. KlASSE. 1923. No. lo). 



UTGIT FOR FRIDTJOF NANSENS FOND 



KRISTIANIA 



AT COMMISSION BY JACOB DYBWAD 



1923 



