Grireoniani Report mld -Abbot PLATE 2. 
Fic. 1.—HYDROGEN SPECTROHELIOGRAM, Ha (ELLERMAN). 
1909, September 10, G. M. T.; 35 22m P, S. T.; 7h 22m A. M. 
Fia. 2.—SOLAR CoRONA. AUGUST 30, 1905. 
(From drawing by Mrs. C. G. Abbot from photographs by the United States Nayal Observatory 
Eclipse Expedition.) 
