ON OBTAINING THE MERIDIAN 



57 



The table on the preceding page was computed with 

 mean declination of Polaris for each year. A more ac- 

 curate result will be had by applying to the tabular values 

 the following correction, which depends on the difference 

 of the mean and the apparent place of the star. The 

 deduced azimuth will in general be correct within 0.3'. 



LOCAL CIVIL (NOT STANDARD) TIME OF THE ELONGATIONS 

 OF POLARIS IN THE YEAR 1915. (COMPUTED FOR LATI- 

 TUDE 40o NORTH AND LONGITUDE 90 OR 6h WEST 



OF GREENWICH) 

 (From United States Coast and Geodetic Survey) 



