C50 OBSERVATIONS ON THE ZODIACAL LIGHT 



No. 325. 



APRIL 18th, 1855: MORNING. 



Lat. at 4A , 30 30' N. : Lon. 65 39' W. 



Suu rose at 5A. 34.im. 



Stronger and Diffuse Light at 3A. 15m. and 4A 15m. 

 Zeiiich point at 3A. 15m., Lat. 53 30' N. : Lon. 251. 



Clouds last evening. This morning not very favorable for observations, and I cannot speak with entire confidence 

 of the boundaries in the chart. I think, however, that they are correct. At 3 h 20 1 " there was a rapid, almost sudden, 

 increase of light within the zigzag a: at 3'' 25"', when I went on deck again, a more intense light appeared within 

 the lower zigzag by b b. The southern boundary of the Diffuse Light could not be made out. 



