OBSERVATIONS. 



clxiii 



The mean equator reading for the series is as previously shown, 360 37 57' 12". 78, which 

 value might be employed for the entire set of -3/ars-observations without danger of introducing 

 any essentially injurious error. But to obviate any distrust arising from this mode of deducing 

 the results, the stars observed on each day have been used to establish the zero-points from 

 which the declinations of Mars on the same day should be counted. 



Equator-points of the Athens Circle. 



