eae et Se ee 
ff ae. ao Ys 
= ne 
eee ee ee eee ee ke eee oe 
Ls ws =e : u 
ADDITION 
TO THE 
MEMOIR ON THE SOLAR ECLIPSE OF JUNE 16, 1806, 
Bry NATHANIEL BOWDITCH, a.m. et 4.a.s. 
ee 5 
i 
Since the communication of my observations of the solar 
eclipse of June 16, 1806, I have endeavored to procure the observa- 
tions made in New-England on the northern and southern limits of 
the total darkness in order to deduce from them the true latitud - of the: 
time of the eclipti sevorthe'San and Moon. 
The only POBsePations I have vet been able to obtain are those made 
at Pawlet in Vermont, on the northern limit of the shadow, and at 
Tarpaulin-Cove, Nashewena, Martha’s Vineyard, and Falmouth on the 
southern limit. — . 
The observations at Pawlet were made by Captain Potter and pub- 
lished a few days after by Doctor Williams. At the time of the ; great- 
est obscuration Captain Potter observed “ that the light of the Sun 
“ instantly ceased for a moment or second of time, and as instantane- 
“ ously appeared.” The place where this observation was made is 
about 40 rods south of the northern boundary of Pawlet, in the lati- 
tude of about 43° 24’ N, (or 43° 12’ 33” reduced to the centre) and in 
the longitude of from 50” to 66” in time west of the place in Rutland, 
where Doctor Williams observed the eclipse; this place by his obser- 
vations is in the longitude of 4h. 51’ 53” W from Greenwich, as will 
be shown in the course of this memoir, therefore Pawlet is nearly in 
the longitude of 4h. 52’ 51” W from Greenwich. With this latitude _ 
and longitude and making use of the elements in the former part of 
this memoir as found in the tables of the third edition of La Lande’s 
* 
ee 4 
