176 Dr. longfield’s 
Being at one time intent on making iome obfervations 
with the crofs wires in your manner, I got a ftand made 
with an arm, to carry a lanthern that fhould follow the 
motion of the telefcope, and applied a folid illuminator 
to it occasionally. The account of this 1 firft met with in 
the preface to your admirable obfervations. 
I changed the object of my tranfit telefcope for an 
achromatic one, got a folid illuminator to it, and put in 
very fine wires, by all which it is much improved. 
Xf 
I am, &c. 
ir 
Eclipfes 
