Smithsonian Report. 1939. — James 



PLATE 5 



1. Spectrum OF Corona. 



August 30. 190.5. (Dyson."! .^fa\. Tunis 



2. Coronal Line 5303 (Without Eclipse). 

 Exposure, 6 minutes. August 10. 1930. (Lyot.) Pic du Midi. 



