6 Mr. Smeaton’s Defcrlption^ &c. 
as file wn in the fedlion, to give it liberty of accommodation ; 
the pin being fall: in the two ends of the crutch, and turning 
gently in the pillar ; the whole being {lender and compliant, 
except in point of length. 
N. B. Thofe that would ufe the globe to the beft advantage 
to folve problems, fliould be careful to get a juft declination, 
as alfo a dijlinffi point to mark it ; and as the circles and divilions 
upon the furface of the globe itfelf, are not always fufticiently 
to be depended on for this purpofe, I have found the following 
expedient fully to anfwer. Chufe any plain white part of the 
globe’s furface, anfwerable to the declination given, and with 
the point of a needle or protradling pin, by the help of the 
divilions of the brafs meridian, mark a line point upon the 
blank furface of the globe, and upon this point make a dot 
with ink, with the fmall point of a pen, which rub off with 
the finger, and it will leave a fine black fpeck behind. This 
dot being brought to the meridian, redlify the horary index 
to it, and it will accurately reprefent the center of the celeftial 
body whofe inveftigation is wanted. 
