V. 



A Comparison of the Harvard College Observatory Catalogue of Stars for 1875.0 

 with the Fundamental Systems of Auwers, Safford, Boss, and Newcomb. 



BY WILLIAM A. ROGERS. 



Presented December 14, 1881. 



Sixce the actual construction of the catalogue of stars found in Volume XII. of 

 the " Annals of Harvard College Observatory," five catalogues of the principal stars 

 of the heavens have been independently formed ; for the most part from complete 

 discussions of all the data available previous to the year 1872. I name them in 

 the order of their publication. 



(a) Fundamental-Catalog fur die Zonen-Beobachtungen am nordlichen Himmel ; heraus°-eo-eben im 



Auftrage der Zonen-Commission der astronomiscben Gesellschaft. 



Von A. Auwers. 



(b) TJ. S. Geograpbical Surveys. Lieut. Geo. M. Wheeler, Corps of Engineers, in charge. Catalogue 



of 2018 Stars for Jan. 1, 1875. 



By T. H. Safford, Ph.D. 



(c) U. S. Northern Boundary Commission. Declinations of Fixed Stars. 



By Lewis Boss, 



Director, buddy Observatory. 



(d) Catalogue of 1098 Standard Clock and Zodiacal Stars, prepared under the direction of 



Simon Newcomb, 

 Professor l~. S. X., Superintendent American Ephemera. 



(e) Verzeichniss von 83 sudlichen Sternen zur Fortsetzung des Fundamental-Catalogs fur die 



Zonen-beobachtungen am Nordhimmel bis zum 31. Grade siidlicher Declination. 



Von A. Auwers. 

 VOL. X. .")!) 



