i88 Dr. Herschel’s Method of observing the 
The second column contains the letters which have been 
affixed to the stars. 
The third column gives the magnitude assigned to the stars 
by Flamsteed in the British catalogue ; and 
The fourth contains my determination of the comparative 
brightness of each star, by a reference to proper standards. 
All numbers used in the fourth column refer to the stars 
of the same constellation in which they occur, except when 
they are marked by the name of some other constellation : and 
in that case the alteration so introduced extends only to the 
single number which is marked, and which then refers to the 
constellation affixed to the number. 
The numbers at the head of the notes, which will be found 
at the end of the catalogue, refer to the stars in the same con- 
stellation to which the notes belong. They contain particu- 
lars which it will be useful to know for tjiose who wish to 
review that constellation. 
To each star which I could not find in the heavens, and 
which, upon examining Flamsteed's observations, appeared 
never to have been seen by him, I have put down “ Does not 
exist." To such as I could not find in the heavens, but 
which nevertheless appeared to have been observed by Flam- 
steed, 1 have put down “ Lost." This is to be understood 
onlv to mean that the star in question was not to be seen 
when I looked for it, but that possibly at some future time, if 
it be a changeable or periodical star, it may come to be visible 
again. 
The observations in the notes, distinguished by marks of 
quotation, “ " are taken from my own journals. 
Errors in Flamsteed's catalogue, or in the Atlas Ccelestis, 
