,C 4J+ ] 
LXIX. OhfervaUons of the Tranfit ^ Venus 
hy Mr, Owen Biddle and Mr. Joel 
Bayley, at Leweflown, in Pennfylvania. 
Co 7 nmunicated by Benjamin Franklin, 
town (on Cape Hinlopen at the mouth of Delaware 
Bay), being ordered there, by the American Philofo- 
phicai Society, held at Philadelphia, for promoting 
ufeful knowledge, to take an obfervation of the en- 
fuing tranfit of Venus over the Sun’s difc ; and im- 
mediately fet about fixing cur time-piece, in a houfe 
(which we hired) on the fouth llreet of the town, 
where we were mod likely to be free from interrup- 
tion, and had an open view of the Sun and dars for 
our obfervations. We fet a flrong oak pod in the 
ground, to which we fcrewed our clock cafe, reding 
the bafe of it on the ground, the face of it fronting a 
door which opens to the fouth ward, fo as to be con- 
venient for us to hear the beat of the clock, where we 
intended to fix our telefcopes and indrument for 
taking equal altitudes. We then fet a pod in the 
groiuid foi dic equal altitude indrument, which was 
enter the Sun, June 3, 3769 ; 7 nade 
L L. D. F, R. S. 
Read I 
‘7 
N the 26th of May, 1769, Joel 
Bayly and myfelf arrived at Lewef- 
Bayly 
not 
