C *73 ] 
XXXII. Obfervations on the *TranJtt of Venus 
over the Sun , on the 6 th of June 1761 : 
In a Letter to the Right Hottourable 
George Earl of Macclesfield, Prefdent 
of the Royal Society , from the Reverend 
Nathaniel Bills, M. A. Savilian Profeffor 
of Geometry in the Univer [ity of Oxford* 
and F. R. S. 
To the Right Honour able the Earl of Macclesfield, 
Frefident of the Royal Society. 
My Lord, June 11, 1761. 
Rend June i », Hp HE prefent bad date of health of 
JL nry worthy friend and collegue 
Dr. Bradley, his Majefty’s AAronomer, prevented 
him from making the proper obfervations of the 
tranfit of Venus on Saturday morning laftj and con- 
fequently, has deprived the public of fuch as would 
have been taken by lb experienced and accurate an 
obferver. But as the doCtor was pleafed to defire me 
to attend at the Royal Obfervatory, to fupply his 
place, I have prefumed to lay before your Lordfhip, 
and the Royal Society, the obfervations I there made, 
with great care, and as much accuracy, as the un- 
favourable Rate of the heavens would permit. The 
inftruments we propofed to ufe, were a reflecting 
telelcope, of two feet focal length, to which was 
fitted Mr. Dollond’s micrometer, both executed by 
Mi, Short. There were fome additions neceflary to 
be 
