188 OBSERVATIONS ON THE ZODIACAL LIGHT. 



No. 94. 



DECEMBER 31st, 1853 : MOUSING. 



Lat. 22^ 18' N.: Lou. 111 10' E. 



Sun rose GA. 42m. 



Stronger Light ih. Om. Diffuse at Midnight. 

 5 0/t. 30m. 



5 22 10 



S 25 20 



4 



5 



At 12" (midnight) turned from the west, where the Zodiacal Light was still visible, and found it showing itself 

 also in the east. Distrustful of my own eyes, I called the quartennnsler on watch, and, directing him " to draw a 

 line hy two certain stars" (Regulus to Mars), said: "Tell me whether the sky looks paler to you along that line, 

 and a little on either side? Look for some time." lie soon replied : "Yes, sir, it looks paler and dim." I said : 

 "How far up?" He replied: "To that bright star" (Regulus); but thought it might be to the dim cluster above 

 (Prresepe)." Which latter was also the limit, as it appeared to me. At oO minutes past midnight, seemed to be a 

 little brighter; same limits as before. At 1 o'clock (he Light was quite distinct; not simply a paling of the sky, but 

 a positive light. At 2 1 ' 30" 1 , Light increased quite strong from 29 Virginia down. Soon after 5", the Stronger 

 Light began to descend rapidly, as the chart will show, till it rested as marked at 5'' 25 m ; at 5 h 32 m , broke bounds, 

 and dawn had come. 



