the change able Stars . 2x3 
theft latitudes. I have alfo, contrary to my fir ft intention, 
added feverai which are not mentioned by them; fuch are 
thofe that I lately difcovered to be miffing. 
Perhaps many perfons would place in the firft clafs feverai 
ftars which 1 have put in the fecond, relying on the pofitive 
affertions we have of their having difappeared, diminifhed, or 
being new ; for my part, I am confident that moft of thefe 
fuppofed changes may be attributed to miftakes ; and in general 
for thofe that are faid to be loft, an attentive comparifon of 
different Maps and. Catalogues will point out the error ; and 
thus I have ventured to give my opinion of Tycho's 20th 
Ceti, nth Librae, and 19th Aquarii, &c. Since Flam- 
steed's Catalogue has been more particularly inveftigated, the 
number of thefe fuppofed loft ftars is confiderably increafed ; 
but if the fecond volume of his Hift. Cceleft. is alfo examined, 
many errors will be detected ; among which it will appear very 
unaccountable, that the 7 1 ft, 80th, and Sift of Hercules, 
which were difcovered to be miffing by Mr. Herschel, are 
not in Flamsteed’s obfervations under the name of Hercules, 
though I looked for them with particular attention, and find 
the 70th. The 19th Perfei, which Mr. Herschel alfo could 
not fee, was- obferved but once by Flamsteed, viz. Jan. 
r6, 1693, and in all probability is the t with the time of its 
tranfit erroneouftv fet down. The r was obferved on Jan. 17, 
1693, and Jan. 18, 1694. Befides thefe Mr. Ggodrxcke has 
found feverai other errors ftill more evident. I fcarcely need add, 
that thefe corrections do not in the leaft intimate any miftake 
or diminifh the merit of thofe that firft point them out, but 
fall entirely on the ancient catalogues and obfervations. 
Mr. Herschel, in feleCting feverai ftars which poftibly may 
be reckoned new ones* very judicioufly gives us plaufible reafons 
not 
