Smithsonian Report. 1940. - McMath 



PLATE 2 



New Prominences Added to pettit's Classification. 



,1, coronal, August 2, 1937, Ca+ spectrohelioginm. 



B, cap, August 3, 1937, Ca+ spectroheliogiam. 



Cand D, surge and ejection of October 25, 1939, Ha si)ectroheIiograms. C, 21i'lS.9'": D. 21''2.5.32'" O. C. T. 



E, ((uasi-eruptive in "active" stage, July 21, 1939, Ca+ spectroheliogram. 



F, QUisi-eruptive in "eruptive" stagp. .Jul.v 22, 1939, Ca-\- spectroheliogram. 



