

 518 OBSERVATIONS ON THE ZODIACAL LIGHT. 



No. 259. 



DECEMBER 19th, Ie5-l. : MORNIN... 



Lat. at 4h., 31 5}' N. : Lon. 1 19 23' W. 

 Sun rose at 6A. r>7'. 



( 2/i. dm. 



Stronger and Diffuse Light/ 3 30 

 ( 5 

 Sun's Lon. 2G7 C 19'. 



Sky, all morning, remarkably fine for observations. Was on deck at half an hour after midnight, and found the 

 eastern Zodiacal Light distinctly and unmistakably marked in the sky, though faint, and it was somewhat difficult to 

 get outlines. Thought also that, at that hour, I could trace a remnant of the same Light in the western sky ; but 

 it was not decided, and gave no reliable boundaries. At 2 h the eastern Zodiacal Light was bright, and at 3 h 30" quite 

 so. At 5 h it was as brilliant as I have ever seen it, and was especially so within the zigzag, where this effulgent 

 Light had more of a cone shape than I ever saw it have before. 



