478 



OPPOSITION OF MARS, 1849-50, 



Coincidence of wires to be applied ; and as the zero wire was not disturbed throughout, but the telescope moved in declination to bisect the star, 

 the coincidence applies to all. 



29.961 29.970 

 30.035 30.045 

 29.955 .972 

 30.052 .046 

 29.965 .965 

 30.048 .052 



29.962 .967 

 30.050 .050 

 29.962 .964 

 30.048 .050 



30.0038 30.0081 



Mean 30.006 rev. 1 rev. 26&quot;. 06925. 



After tenth measure, position circle verniers turned 180&quot;. Screw-head now below. The cross eliminates the coincidence of the wires by taking 

 the mean of screw above and screw below. 



