160 OBSERVATIONS ON THE ZODIACAL LIGHT. 



No. 80. 



NOVEMBER ls>t, 1853 : EVENING. 



Lat. 22 23' N.: Lon. 113 32' E. 



Sun set 5A. 19. 



Stronger Light at 7/i. Om. Diffuse, 1h. Om. 

 80 80 



90 90 



10 10 



11 



There were clouds (cirri) in the west till 7 o'clock, when they left, and I commenced observations ; the atmosphere 

 remarkably clear quite down to the low hills which lormed the horizon. Determined, as circumstances were so fa- 

 vorable, to watch it to the last; and also to see its first beginnings afterwards in the east, so as to know how near, 

 in time, the eastern and western Zodiacal Lights approach each otl.er. The evening result is in the chart. After 

 10 o'clock the Diffuse Light faded into nothing; at ll b , the other had become very taint, but was still perceptible. 

 This lasted till 11" 30 m , when there was nothing any longer reliable; nothing certain to distinguish that part of the 

 sky. 



