336 OBSERVATIONS ON THE ZODIACAL LIGHT. 



No. 1CS. 



JUNE 21th, 1854 : EVKNINO. 



Lat. 31 4(1' N.l Lon. 133' 59' E. 



Sun set 7A. 12m. 

 Stronger and Diffuse Light, iinj 10 o'clock. 



Storming all day ; cleaved up suddenly ; and at 9 h p. m., the sky was remarkably clear and bright th- ,".i 

 having been purified by the storm. With all this, however, there was sum:' difficulty in getting the boundaries at 

 the upper end of the Stronger Light, and still greater as ivsp ; >cts the Diffuse Light throughout. At 10' 1 the Zodiacal 

 Light was still very decided ; but I can scarcely set down the boundaries given to the Diffuse Light, ;it that hour, as 

 fully reliable, though the sky was still very clear. I give them as they appeared to me to be, without offering them 

 as a certainty. 



