052 OBSERVATIONS ON THE ZODIACAL LIGHT. 



No. 326. 



APRIL 18th, 1855! EVENING. 



Lat at 8h., 32 10' N. : Lon. G71G' W. 



Sun set at 6/1. 2G.Jm. 

 Stronger and Diffuse Light at 9h. and \0ft. 



The sky, this evening, was perfect for observations ; but the moon did hot set till o'clock. The Stronger Light 

 was, at that hour, very brilliant below ; and was quite bright as far up as Prtesepe, above which, though dimmer, it 

 could still be traced. At 10 h it was still very bright, the atmosphere being remarkably clear. 



I have, in my recent markings ou the chart, drawn the Stronger Light as extending far up in the sky; but it must 

 be observed that its upper portion is very dim, sometimes ^scarcely to be made out. At 10 h could not bound the 

 Diffuse Light reliably. 



