THE STARS. 147 



tolerable certainty, the most favourable opportu- 

 nities for making telescopic observations. These 

 circumstances, if the subject had no other recom- 

 mendation, are alone sufficient to entitle it to 

 some consideration ; but, as an interesting in- 

 quiry in physical science, the cause of this phe- 

 nomenon is certainly deserving of minute in- 

 vestigation. 



t2 



