cx iv 



OBSERVATIONS. 



6. OBSERVATIONS. 



The observations have, in almost every case, been reduced anew, as far as the data permitted, 

 and the results are given in detail. The right-ascensions are given where space conveniently 

 allows : both the observed and, in a subsequent section, the computed values. Although only 

 approximately required for our purpose, it seems well to append them to the other results when 

 no obstacle exists, both on account of completeness and for convenience of use. The observa 

 tions for each planet and each series are naturally grouped together, and the results of each 

 group considered by themselves. 



The positions of the comparison-stars constitute a first requisite, and the observations for 

 each series are preceded by a table of apparent places, containing for every star employed the 

 dates on which it was used, the reductions from mean to apparent places, and the resulting 

 apparent declinations. 



I. FIRST SERIES OF OBSERVATIONS OF MARS. 

 Apparent Places of Stars compared with Mars during the first Series of Observations. 



