OBSERVATIONS ON THE ZODIACAL LIGU?. 



So. SOT. 



MARCH 21st, 1855: MORNIM; 



Lat. 22 r,y ,.: Lou. 43 6' \V. 



Sun rose (Jfi. ~ m. 



t _'//. H,,. 



Stronger Liylit at 3ft. 0/n. mid 4A. 3()m. : Diffuse at? 3 



( 4 30 

 Sun's Ion. U- 19'. 



Clouds last evening. Was on deck at 2 o'clock. The Zodiacal Light was very distinct, but was oiii'y a vdiit isL 

 yellow patch in the angle between the Milky Way and horizon, thinning off gradually till it seemed to be lost at the 

 line a i'i , the boundary there being very indistinct. Again on deck at 3' 1 , when the Zodiacal Light was very distinct 

 all the boundaries very well marked, especially those on the left or north. The sky, so far, was very favorable for 

 observations : but at 4", clouds interfered ; these cleared away by 4 h 30'", leaving all things again quite favorable for 

 observations ; and I had reliable boundaries, which I took with the greatest care. The Light was then very strong. 

 At 4 h 43 m it began to spread, and in a few minutes dawn had decidedly come. 





