242 



OBSERVATIONS ON THE ZODIACAL LIGHT. 



No. 121. 



FEBRUARY 21st, 185<t: EVENING. 



Lat. 35 19' N. : Lnn. 139 43' E. 



Sun set 5/i. 43>n. 

 Stronger Light 7/i. 15m., &c., to 8A. : Diffuse 7A. 30m. 



Clouds and rain all day, and a gale blowing. Did not look for any thing in the evening ; but all at once I found 

 the stars out, and the sky perfectly clear. At 7'' 15 m I was ready to make a record of the sky. At that time the 

 Stronger Light was at a. 



h. m. 



At 7 36, at b. 

 7 37, at d. 

 7 38, do. 

 7 40, at e. 

 7 41, do. 



43, 



44, 



46, 



47, 



do. but dim. 

 do. and bright, 

 do. 



do. ami dim. 



h. m. 

 At 7 19, it was at c. 



7 20, at b, and dying away. 



7 21, at a, 



7 22, do.* 



7 23, at b. 



7 25, at d. 



7 26, do. 



7 27, at a. 



7 28, at d. 



7 30, do. and has brightened till it is as if the sun 



was just going to rise. 

 7 31, at b. 

 7 32, do. 

 7 33, at d. 

 7 34, do. 

 7 35, at a, and seems to be dying away. 



It was uniformly dim at the lower elevations, and bright at the higher ; but the Light seemed generally to rise 

 faster than it brightened. 



Clouds crossed the sky soon after 8 h , and at 9 h I could get no observation. 



7 48, at/, and bright. 

 7 51, do. and bright. 



It seems to be permanent at 



/, and is quite bright ; but not so bright at 

 its lower part as when it was at d. 



7 54, still as at 7 1 ' 51 m . 



8 0, it has risen to g, but no longer pulsates. 



* In all this record of pulsations, " do." means still continued as at the last. 



