258 ANDERSON— ECLIPSE EXPEDITION 



light was more than lo per cent, of normal. However, the program 

 was carried through as planned. 



The photographs obtained with the photoheliograph were fairly 

 good as may be seen from the slides (2 and 3). The plates taken 

 with the Littrow plane grating spectrograph were too weak to be 

 of value, as was also the case with those obtained with the objective 

 grating spectrograph. The latter shown about a dozen of the ultra- 

 violet hydrogen lines, and the prominences in the stronger hydrogen 

 lines and in H and K show well. The irregular prominence shown 

 on slide 2 shows some distortion due probably to motion in the line 

 of sight. 



The plate taken with the corona rotation spectrograph shows the 

 coronal line only at the east limb, hence the rotation cannot be deter- 

 mined. The wave-length at E limb neglecting the rotation comes 

 out equal to 5303.022 I. A. 



Mount Wilson Observatory, 

 Pasadena, Calif. 



