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not a greater uncertainty than a fecond and half of 
time. At the internal coincidence of circumferences, 
the limb of Venus next to that of the Sun being pro- 
tuberant, her vertical diameter appeared to be longer 
than the horizontal one j but when the Sun approach- 
ed the horizon, and was fcarce above a degree high, 
Venus’s horizontal diameter appeared to be fenfibly 
longer than the vertical, which was, probably, owing 
to retraction. After the internal contact, there appeared 
a luminous Ring round the body of Venus, about the 
thicknefs of half her femi-diameter ; it was brighteft 
towards Venus’s body, and gradually diminifhed in 
fplendor at greater diflances, but the whole was ex- 
ceffive white and faint. This radiancy round the 
planet feemed to him to be greater in Mr. Nairne’s 
2 feet telefcope than in the 6 feet Newtonian re- 
flector. 
After the fecond or internal contaCt, Mr. Hirft 
left off obferving with Mr. Dunn’s 2 feet refleCtor, 
and had a fight of Venus in the 6 feet Newtonian re- 
fleCtor, in which he thought he perceived a glimmer- 
ing of light about the upper part of the circumference 
of Venus, or that part of the planet which entered 
lafl into the Solar difc. 
After Venus was got within the Sun’s difc, a light 
a little weaker than that of the Sun, of a purplifli co- 
lour, appeared to Mr. Horfley, to the left-hand of 
Venus, which is really to the right, the telefcope in- 
verting objeCts. This light he faw for fix or feven 
minutes. 
From 7 11 28' 26'' to J h 28' 30" apparent time, 
Mr, Dunn faw a very faint rim of light at Venus’s 
A a a 2 exterior 
