134 OBSERVATIONS ON THE ZODIACAL LIGHT. 



No. 67, 



OCTOBER 8th, 1853 : 



Lat. 22 11' N. : Lon. 113 36' E. 



Sun rose 5A. 57.};n. 



Stronger Light at 3A. Om. Diffuse 3/i. 0i. 

 40 40 



4 30 &c. 4 30 



Clouds since the morning of the 4th. This morning the sky was remarkably clear, and I hail good observations. 

 The Milky Way prevented my ascertaining exactly the upper limits of the Diffuse Light at 3 o'clock. Was struck, 

 this morning, with the difference between the Zodiacal Light and that of the Milky Way. The former is a soft, 

 warm light, a little tinged with yellow, as if the sun were just going to rise; this was the appearance of the Stronger 

 Light at 3 o'clock. This brighter part was unusually brilliant this morning. I could see nothing in the Milky 

 Way to compare with it in brilliancy. This was particularly the case from 4 h to 4 1 ' 30 m ; the zigzag line bounds a 

 portion more effulgent than the rest. The suddenness of the change from the Zodiacal, to dawn light, is worthy of 

 remark. This morning, I turned my eyes from the Zodiacal Light, in order to make some annotations, and when, 

 after writing but twelve words, I looked again, the light had spread, and dawn had come. This was at 4" 34'". 



