i9oS.] OF DANIEL'S COMET. 9 



nitude star, BD + 7° 388 ( 1855.0 2^^ 20" 27^7 + 7° 48'.4 4'"-5 ),4°± 

 south of it. It was brighter than any of the stars near. 



July 18. — To the naked eye, when best seen — visible only through 

 gaps in clouds — the head was third magnitude. It seemed to be 

 brighter than on the seventeenth. 



July ip. — I am sure there were frequent fluctuations of the 

 comet's light to the extent of about one magnitude. To the naked 

 eye the comet was 3^ magnitude. At best it was ^ magnitude 

 brighter than the naked eye star, BD + 9° 359 (1855.0 2^ 37"^ 6^o 

 -["9° 29'.9 4™.o), 3° s.w. of it. Could see faint suggestions of a tail. 

 Good sky. 



July 28. — i^^ 45'". The head was conspicuous, like a hazy star, 

 notwithstanding a gibbous moon. In the finder of the 40-inch I 

 could trace the tail faintly across the field (2°). There was a 

 bright stellar nucleus of about the sixth magnitude. In the 40-inch 

 the nucleus was very bright, but not stellar. The head filled the 

 field of view (5V power 460). There seemed to be a shadow effect 

 behind the nucleus — away from the sun. 



July ji. — In spite of the presence of a half moon the comet was 

 conspicuous, like a hazy star, 2° west of Aldebaran. I could see it 

 with the naked eye as late as 16'^ 3"^. 



August I. — The comet was conspicuous, like a bright hazy star. 

 It was the same brightness as 8^ or 8- Tauri. Could not be certain 

 of any tail. In the guiding telescope the nucleus was not so dis- 

 tinct as it was on July 31. 



August J. — It was conspicuous like a small 3 or 3^ magnitude 

 star. There were faint suggestions of a tail to the naked eye. It 

 was not decidedly brighter [than on the first]. There was, of 

 course, less moonlight than on the other morning. In the 5-inch 

 the nucleus was not definite — only a central condensation. There 

 seemed to be fluctuations in its light with the 5-inch and I think 

 they were verified with the naked eye. 



August 5. — To the naked eye the head of the comet was equal to 

 ^ Tauri. The tail was about 15° in length and stretched out to 

 within a degree or two of Aldebaran. At times I thought I could 

 see it as far as Aldebaran. It would have passed south of that 



