CHAP, in.] . Astronomical.. 97 



I wish it were possible to offer something which could be 

 of use to our Royal Astronomer than merely thanks. Per- 

 haps the enclosed catalogue may be of some little service on 

 some occasion or other. I was obliged to bring it into that 

 form by way of scrutinizing the real number of omitted 

 stars, and find it now very useful when my brother, in 

 sweeping, &c., observes stars which are not contained in 

 Wollaston's Catalogue, to know immediately by this order 

 of R. A. if they are in any of Flamsteed's omitted stars, and 

 if they are, what number they bear in the catalogue of 

 omitted stars, which number we find in the first column. 

 The rest of the columns will want no explanation, except 

 the last, which would not be complete, or even intelligible, 

 without the assistance of the catalogue of omitted stars, and 

 the notes to that catalogue, for they are short memorandums 

 collected from the descriptions in the catalogue, and from 

 the notes to some of the stars. 



As our Index contains all the corrections and information 

 which I possibly could collect, those corrections and memo- 

 randums of which I had the pleasure, about eighteen months 

 ago, to write a copy for Dr. Maskelyne, will consequently 

 be laid aside, else I ought to take notice that there are one 

 or two errors and several omissions which should have been 

 corrected in that copy, but with which it will now be needless 

 to trouble you, sir. 



What has laid me under particular obligation to you, my 

 dear sir, was your timely information, the August before 

 last, of your having proposed the printing of the Index to 

 the P. K. S. The papers were then in so incomplete a 

 state, that it needed each moment which could possibly 

 be spared from other business to deliver them with some 

 confidence of their being pretty correct. 



Many times do I think with pleasure and comfort on the 

 friendly invitations Mrs. Maskelyne and yourself have given 



