662 OBSERVATIONS ON THE ZODIACAL LIGHT. 



No. 331. 



MOON ZODIACAL LIGHT. 



FEBRUARY 14th, 1854. 



Lat. 35 19' N. : Lon. 139 43' E. 



Sun set at 5A. 36m. 

 Observations at 6A. 50m., Gh. 54m , and 6A. 56m. 



Since my last notice of the moon Zodiacal Light, I have been watching anxiously for another opportunity for snch 

 observations; but the clouds have prevented until this evening, when I had an excellent one. _ There is no land 

 obstruction, and this evening the sky was clear, except a dense haze, confined closely to the horizon. The moon rose 

 before the night had entirely set in, but still the darkness was sufficient to afford a good exhibition of the Light, 

 which was as follows : At 6 h '40 m there was a faint blush in the usual Zodiacal Light path, but not distinct enough to 

 give outlines. At 6" 50 it was decided, and I got boundaries as in the chart: 6 h 52" the light was very bright, 

 limits as before : 6 h 54'" limits enlarged, light nearly as strong as the best Sun's Zodiacal Light : 6" 55 m the disc of 

 the moon showing itself, but with enlarged bounds of the Zodiacal Light, as in the chart. At 6 1 ' 57 m the light had 

 broken bounds, and was now atmospheric moonlight. The breaking bounds was very sudden and rapid. 



