Intelligence and Miscellaneous Articles. 



73 



Greenwich, which agree in a remarkable way with my observations 

 on the same stars. It is true that there were discordances among 

 the early Greenwich observations ; but these were due for the most 

 part to the apparatus, which was not in all respects sufficiently 

 trustworthy. Mr. Christie compares his results with mine in the 

 following Table. The figures indicate the velocity of approach or 

 of recession in English miles. 



A Comparison of Star Motions in line of Sight. 

 + == recessiou. — = approach. 



Star. 



Huggins.. 



Greenwich. 



a AndromedoB... 



Aldebaran 



Capella 



Rigel 



+ ? 

 + 

 + 



+22 

 + 18-29 

 +23-28 

 + 



-49 

 + 12-17 

 + 17-21 

 -46-60 

 + ? 

 + 

 + ? 

 -55 

 _ ? 



+ ' 



-44-54 



-39 



-35 



+ 

 +20 



+ 



+ 75 

 +25 

 + 25 

 +40 



+30 



+ 



+ 

 -35 



+ 



-37 

 -50 

 -27 



Betelgeuse 



Sirius 



Castor 



Procyon 



Pollux 





/3Urso3 Majoris 

 aUrsoe Majoris 

 /3 Leonis 



Spica 



r\ Ursse Majoris 



Bootes 







a. Cygni 



aPegasi 





Mr. Christie remarks : — "Notwithstanding these difficulties, it is 

 gratifying to find that out of the list of twenty-one stars which have 

 been observed both by Dr. Huggins and Mr. Maunder there are 

 only two cases of discordance, and for both these stars Dr. Hug- 

 gius has expressed himself as dissatisfied with his observations ; 

 whilst the Greenwich results for these stars rest on too few obser- 

 vations at present." 



Since this paper was presented to the Eoyal Astronomical Society, 

 the displacement of the Draunhofer lines in the spectrum of Venus 

 has been observed at Greenwich; and it agrees in direction with the 

 kuown movement of that planet. 



It is not necessary for me to investigate the causes of Father 

 Secchi's want of success. It is sufficient to say that from the 

 first I considered the obtaining of the assurance that the com- 

 parison of the star- spectrum with that of a terrestrial substance 

 was not in the very least affected by the motions of the telescope 

 to be obviousty one of the very first and most necessary precautions 

 to take. 



