1 36 Mr . P i go t t*s ' Obfervations , See, 
tudes, and for that purpofe had in 1776 divifions engraved on 
the eye-tube of a refraCtor ; but found that its high magnify- 
ing .powers prevented fhars of the fir ft and fecond magnitude 
becoming invillble. 
Daftly, I am inclined to think the following method practi- 
cable, viz. to refleCt in a telefcope, by means of an illumina- 
tor, different degrees of light in a known proportion, fo that 
ftars of all magnitudes may be obliterated. 
The changeable ftate of the weather will perhaps be thought 
a confiderable obftacle to thefe contrivances, and to throw doubt 
on the obfervations ; but this may be fufficiently obviated by 
attending to fmall telefcopic ftars, which according to the 
clearnefs of the atmofphere are more or lefs diftinCtty feen. 
I beg the favour of you, dear Sir, to prefent thefe obferva- 
itions to the Royal Society ; and believe me, with the greateft 
regard, See, 
fork, Dec. 1784. EDWARD PIGOTT* 
