[ 4i6 ] 
boundary between the lower counties and Maryland, 
is 19' 24'''; and the meridional difFerence of 
longitude of the place of our obfervation, wed; j'rom 
the point aforefaid, in Fenwick’s Ifland, 3' 45 of a 
degree, Thefe data, with the latitude and longitude 
of Station Point, will determine exadtiy the place of 
obfervation. 
June 2, the weather being clear, had good cor- 
refponding obfervatlons of the Sun. 
June 3, the weather being remarkably fine, had 
good obfervations tofetour clock. About 12 o’clock 
began to diredt our glafles to the Sun, keeping it 
continually in the field from then to the time the ob- 
lervation was pad. We agreed to watcli our te- 
lefcope one minute in turn, till about feven or eight 
minutes before the contadl was expedled, left, by too 
fteady an attention to the glalTes, our fight fhould be 
impaired, fo as to difable us from difcerning the 
contadl clearly. I had left my telefcope the minute 
preceding the contadl, intending to apply myfelf 
fteadily to it, from the next minute, until the obferva- 
tion was paft ; and when the 48th fecond was called, 
I applied myfelf to the glafs, and by the time three 
fecondb were elapfed, I perceived, on that part of the 
Sun’s limb where 1 expedled the contadf, a fmall im- 
preftion, which proved to be the limb of Vcuus in 
contadl with the Sun. All the limb of the Sun, 
which appeared at that time in the field of the te- 
lefcope, had a fmaJl unduiatury motion, which, I 
apprehend, was owing to denfe vapours, winch arofe 
at that place, being u'^ar the fea. At Venus’s firft: 
apijearance to m-, it was only Uke one of tnofe 
waves on the limb oi border of the Sun, increaiod in 
fo 
