[ 413 ] 
The thought occurred to me while I was ufing 
Lord Charles Cavendilh’s meridian line 5 to which 
you fee I thus adapt a telefcope ; and there being 
fewer particulars neceflary to be attended to, when 
once rectified, I thought it would be more fervice- 
able in a common building, than thofe tranfit-inftriw 
ments which require fo very fteady a foundation. 
Eaft-Dereham» 
June and July, 1769, 
Francis Wollafton* 
% 
LK. C»Jer>r 
