296 Mr. Bowditch on the solar eclipse, June 26, 1805. 
The observation at Lancaster, in the latitude of 40° 2’ 36”, longi- 
tude 5h. 5’ 222 W from Greenwich, was made by Mr. Ellicott at 
Gh. 43’ 26” apparent time. At that time by the above elements the 
moon’s augmented semidiameter was 16’ 44”"18, (2—©) horizontal 
parallax 61’ 4°70, par. in long. — 44’ 38”°5, par. in lat. 41’ 2%2. 
Hence the apparent time of conjunction was 6/. 9’ 23’*3, correspond- 
ing to 114. 14’ 45"*5 at Greenwich, and, by increasing the moon’s lat- 
itude / seconds, this would become 114, 14’ 455 — 146° The 
mean of this and the former value is 11/4, 14’ 49”*1 — 1°45*/. 
The observation at New York was ‘nade by Mr. Ferrer in lati- 
tude of 40° 42’ 40” N, at 64, 50’ 10” apparent time. The moon’s 
augmented semidiameter was 16’ 43’*92, ()—©) horizontal parallax 
61’ 4”-56, par. in long. — 43’ 52”4, par. in lat. 42’ 0’-5. Hence the 
apparent time of conjunction was 6/. 18’ 34”, and by increasing the 
-moon’s latitude by / seconds, this becomes 64, 18’ 34” — 1” 38° /, 
_which subtracted from the time of conjunction at Greenwich 11/; 14’ 
49"1 — 1°45 /, gives the longitude of the place of observation Ah. 16 
15”*1— 0°07 4, and as this place is 0’-3 W of Columbia College, 
the longitude of that College would be 44. 56’ 14”-8 —0"-07 4 in 
which the coefficient of / is small, and we may without much error 
_assume the longitude to be 44. 56’ 14-8 by this observation. This 
| was combined with other observations in the former part of this me: 
moir. 
| The longitudes here calculated, with the addition of a few sa 
in the vicinity of Salem, marked with an asterisk, which I have found 
by a trigonometrical survey, are collected in the following table. The 
longitudes of Boston State-House and Light-House pote Cambridge 
were found by Professor Farrar. 
Most of the preceding calculations have been made in two diffe- 
rent ways, to verify the accuracy of the results, 
