80 Observations on the eclipse of the sur, June 16, 1806. 
“ but at 11h. 11’47” apparent time the sun’s limb appeared to be re- 
“ duced to a small circular thread, or rather like a very fine horn, the 
“upper end of which broke into a drop and instantly disappeared. 
“The lucid part of the sun evidently decreased till 11h. 16’ 52”. ‘The 
“ nosition of the lucid part at that time seemed to change suddenly to 
“ the east, and in a few minutes appeared on that part of the sun, where 
“ the eclipse began, and the light instantly increased before there was 
“ any appearance to the eye of an increase of the lucid part.” . The 
latitude of the place of observation was 43° 36’ N (reduced 43° 24’ 32” 
N). The longitude made use of in calculating the parallaxes was Ah. 
52! 32” W from Greenwich. The moon’s parallax minus the sun’s 
parallax at the beginning of the eclipse was, in longitude +21 1 10”°2, 
in latitude —23' 57-2. and at the end of the eclipse was in indangitude 
gh 27-2, and in latitude —20' 36"-4. The. moon's iameter 
the beginning was 16’ 39”-3, at the end 16’ 41”: “é Hence the t mean 
time of the ecliptic conjunction at Rutland was 11h, 28’ 59”*7. This,’ 
subtracted from the mean time of the conjunction at Salem, 11h. 37’ 
20"-7, leaves the longitude of Rutland 8’ 21” W from Salem, or 4h. 51’ 
53” W from Greenwich. 
It appears by calculation that the least apparent distance of the cen- 
tres of the sun and moon at Rutland was at 11h. 15’ 36 36” mean time, and 
that the eclipse would have been total if the error of the tables of the 
moon’s latitude at the time of the conjunction had been +45, instead 
—6'9, found by the other observations. 
The observations made at Albany, Kinderhook, Philadelphia, Lan 
caster, and Natches, were communicated by Mr. Ferrer to President 
Webber, who politely furnished me with a copy, from which I have 
deduged, the: longitudes of thove, piaats,: 8 iccbetberp calcula- 
tions, _ 
