2 g 6 Dr. Herschel‘s Third Catalogue of the 
place of the 34th Tauri in the British catalogue ; and that no 
other observation of the same star occurs in the second volume. 
In my catalogue of comparative brightness, the 34th Tauri is 
put down among the lost stars, it being no longer to be seen in 
the place where it was observed by Flamsteed. 
If in my review of the heavens I cannot find 38 Leonis, and 
examine this index, I am at once informed that Flamsteed 
never observed such a star; and that of consequence it has been 
inserted in the British catalogue by some mistake or other. 
In many cases, these mistakes may be easily traced, as has 
been shewn with regard to this star in my second catalogue of 
comparative brightness. See the note to 38 Leonis. 
When we wish to examine 90 Ceti in the heavens, and can- 
not find it, we are informed by our index, that 90 Ceti is the 
same star with 1 Eridani ; and that, consequently, we are not 
to look out for two different stars. 
We may now proceed to give some general results that are 
to be obtained from an inspection of our index. They are as 
follows. 
111 Stars inserted in the British catalogue have never been 
observed by Flamsteed. This will explain why so many stars 
in the heavens seem to have been lost. 
There are 39 stars in the same catalogue that want consi- 
derable corrections in right-ascension or polar-distance. In 
many it amounts to several degrees. 
54 stars more, besides the 39 that are taken from the erro- 
neous stars in the catalogue, want corrections in the Atlas 
Ccelestis ; several of them also of many degrees. 
42 stars are put down, which must be reduced to 2 1 ; each 
going by two names in different constellations. 
