218 OSSEBVATIONS OS THE ZODIACAL LIGHT, 



No. 109. 



JANUARY 27th, 1851: EVEXIXO. 



Lat. 26- 10' X.: Lon. 127 3 42' E. 



Sun set 5A. 35w. 

 Stronger and Diffuse Light at 7 and 8 o'clock. 



Have been trying lately to watch the change from twilight into the Zodiacal Light, but have been baffled by the 

 ever-shifting clouds. This evening the red light on the horizon, after su iset, changed gradually into a dull grey, 

 evenly diffused : at G 1 ' '25 m , this grey began to brighten up a little; and inure so below Venus than in any other place: 

 at 6 h 30"' it was bright, but still not Zodiacal ('. c., it was not confined to the Zodiacal Light bounds. Then clouds 

 gathered over, and I could do nothing more till Y m ; at which lime, and at, 8'', got boundaries as in chart. Then 

 clouds again, which continued all the rest of the night. At 7 1 ' the sky was remarkably bright and clear ; and I 

 noticed, what had struck me also for two or three nights before, that the Stronger Light tapered off gradually above ; 

 thus running into a sharp cone. At 8', that part of the sky was obscured by clouds, and I could not see whether 

 the Zodiacal Light yet continued or not. 



