M. Wronsld and Br. Young. 1S5 



1820. b, m. 



Aug. 30 1 P.M. Ditto A\iio with naked eye (about 



37° from O). 

 Sept. 3 10 30 A.M. Ditto ditto, with 170, and ditto. 

 4 12 30 P.M. Ditto ditto ditto. 



7 during © eclipse. Ditto rather brighter than at other 

 times, with naked eye. 



10 9 15 A.M. Dittoverybright, through cirrhi, ditto. 



11 12 30 P.M. Ditto ditto on a clear sky, ditto. 



12 12 30 P.M. Ditto (appearances of inequalities witli 



1/0) ditto. 

 Oct. 1 9 30 A.M. Ditto exceedingly bright, ditto. 



3 10 45 A.M. Ditto very bright near the ]) , both do. 

 28 11 A.M. Ditto ditto ditto, 



Nov. 3 11 A.M. Ditto ditto ditto. 



19 11 30 A.M. Saw? again very bright in the tele- 

 scope with 40. difficult to find with 

 naked eye (about 43° from ©). 

 Dec. 12 2 P.M. Saw Jupiter near the 5; also his belts 

 in full sunshine with 40 ; middle 

 bright belt much brighter than the 

 rest of the planet, which was verv 

 pale, but pretty well defined ; he was 

 1821. 720^ so bright as the moon. 



Jan. 16 9 30 A.M. Saw ? again in bright sunshine, ?nii?'- 

 sille to the naked eye, very white, 

 pale, and indistinct with IJO, but 

 with 40 much better ; alt. about 

 15°; she was visible through thin 

 flying clouds. 

 Thus she was visible to the unassisted sight from a period an- 

 terior to 16th May, when I first saw her, until 15th June ; from 

 that time, till about the 30th August, she was too near the sun 

 to be seen without better eyes than mine, unless assisted by a te- 

 lescope, when she again became visible to the naked eye, and 

 continued so until about the 19th November : and, I may add, 

 at various altitudes above 10", below which, I am not certain 1 

 have seen her during sunshine. 



XX. Notices respecting New Books. 



M. Wronski and Dr. Young. 



To Mr, Tilloch. 



Sir, — J. iiu attention which has lately been paid in the Philo- 

 sophical Magazine to astronomical subjects, entitles its Editor's 



opinion 



