8 SMITHSONIAN INSTITUTION 



to get the bolometer back in focus. This seems to be causing the most trouble. 

 The concave mirror was not displaced during the quake. After this, we set the 

 control magnet and the sky had cleared so we tried observing just to see where 

 we stood. On developing up the plate the swing proved very short and the defini- 

 tion was no good. Monday morning, as soon as the sun rose, we tried to get 

 the bolometer back in focus, improving it somewhat. 



We took three holographs and got a fair looking value but I was afraid to call 

 it satisfactory. Tuesday morning, we again tried improving the bolometer posi- 

 tion but made matters worse. This morning I improved the bolometer position 

 materially and now feel that we have matters fairly well in hand. 



