The following Table, which exhibits the comparison of the Greenwich Standard Right Ascensions (given in the preceding Table) and the Right Ascensions actually deduced and printed in the Star Catalogue of the present volume, will show the degree of agreement of the results, and will exhibit more clearly the identity of the equinoxes to which the stars are referred.

The sum of the excess amounts to + 0.29, and therefore the mean is

The comparison of the Apparent Right Ascension of each of the stars observed for the determination of clock-error with the time of transit corrected for the three errors gives an error of the clock, and the mean of all the errors observed on any evening is supposed to correspond to the mean of the sidereal times or right ascensions. Then, by comparing similar results on successive days, the rate of the clock, or its loss or gain in twenty-four hours, is determined, and the actual rate used for any group is found in general by comparing the preceding and following groups. In determining the rate, it is necessary to make allowance for personal equation, and this, as determined from simultaneous observations by Mr. Quirling and Mr. Lucas throughout the year 1862, was found to be 0.56; that is, it is necessary to subtract os 56 from the "clock-slow" as found by Mr. Lucas, to reduce to the "clock-slow" as observed by Mr. Quirling. The following Table will exhibit the mean clock-errors and rates for the year 1862