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VI. Extract of a Letter from Capt. Basil Hall, R. N. F. R. S. 
to William Hyde Wollaston, M. D. V.P . R. S. contain- 
ing observations of a Comet seen at Valparaiso. 
Read January 10, 1822. 
His Majesty’s ship Conway, 
My DEAR Sir, Valparaiso, May 4, 1821. 
I have much pleasure in sending you some observations 
which I have just made upon a comet that has been in sight 
here for 33 days. It is now almost gone, and I scarcely 
hope to get another satisfactory observation of its place. I 
was unfortunately in the interior of the country when it first 
appeared, so that it was not until the 8th of April that I was 
able to make any observation with accuracy. Since that day 
I have determined its place, as you will see, for several other 
days, and I trust there are data enough to work upon. 
ever sincerely your’s, &c. &c. 
BASIL HALL. 
