458 Dr. Herschel's Remarks, See. 
is arrived to such perfection as to present us with a complete 
relation of all the incidents that have happened to the most 
eminent of them, we may then possibly not only be still more 
assured of their rotatory motion, but also perceive that they 
have other movements, such as nutations or changes in the in- 
clination of their axes; which, added to bodies much flattened 
by quick rotatory motions, or surrounded by rings like Saturn, 
will easily account for many new phenomena that may then 
offer themselves to our extended views. 
Memorandum relating to the following Catalogue. 
It was my intention to have continued to remark all the 
deviations of brightness, here assigned to the stars, from the 
magnitudes which are given by Flamsteed, either in his ob- 
servations, or in the British catalogue ; but I now find this 
author so little consistent, that it appears to be of no use to 
refer to his determinations. In the constellation of Aries are 
no less than gf stars, in which the magnitudes of his catalogue 
differ from those we find in his observations ; and these are 
generally the stars of the greatest brightness. The difference 
is also very considerable : thus, 41 Arietis is observed 6m, the 
catalogue gives 3m; 50 is observed 7 m, the catalogue gives 
5m; 35 is 5m, catalogue 4m; 33 is 6m, catalogue 5m; 38 
is 6m, catalogue 7 m. 
The notes to these and the remaining constellations, there- 
fore, will now be confined chiefly to my own observations, and 
to the correction of errors that have fallen under my notice. 
