to6 Mr. willard on the Longitude 
, i h^d uo.-micromqt^r to meafu ( re .tihq lucid part of the fun in 
its- leaft if ate, and thereby determine the. error of mater’s 
tables, in latitude , at r thq : rpiddle lof ; this- eel ipie. But according 
to- the Qbfervatians. of { Profedbr itiLLiAtos^ Dr. winthrop’s 
id cggflqr,?* tlje f gffprfc pot gre4t.*j : 1 He and * feveral affi Hants 
-v ghfe^ypd ' l h§ 4 *?£p IHamdrln Benabfcot Bay. The 
|atl^yflp / pf pl^^^f ^bfa^yati^>p he^fonindto /be 44° ij' 7" N. 
i I e . g § r be g^ifi-n ip;g : q f; Jthe Cclipfe at 11 h. 1 V 8" A.M. 
andr 4 h.e > M 4 ^U'i I .:l 1 ^^ / pty'ftPdMt' apparent time. He was fur- 
nifhed with an excellent DOLLbNp’k micrometer, with which 
he, m§a%redtthc v lhnis /diameter on the morning .of the eclipfe, 
an/Lthp luoidvpdrts f #4tiy times during, its continuance* By his 
observations, compared with thofe made at Beverly, I find the 
difference of meridians , between Beverly and Long Ilian d to 
S' 4" in time. Tile time of. the greateft obfeuration was at 
12 h. 30' 22", when the lucid part of the fun was 8" on the 
lower limb. The fun’s femi-diameter according to observation 
was i6 7 8", 7 ; the moon’s horizontal femi-diameter, according 
to the tables, 1 6' 23^,8; the augmentation of her femi-dia- 
meter, agreeably to her altitude, 9", 5 ; the fum of the vifible 
femi-diameters of the fun and moon therefore 32' 42". The 
lucid part of the fun 8 r/ being fubtracled from 32' 17'', 4, the 
fun’s diameter, leaves 32' 9^,4 for the eclipfed part of the fun, 
which fubtra&ed from 32' 42" leaves 32'', 6 for the leaft dif- 
tance of the centers of the fun and, moon. The vifible angle 
of the moon with the ftfn'v^s jT ®nd^ 15 0 54' 54", and her 
motion from the fun in her •. i'4 "? 5 in one minute; 
the vifible ecliptic conjun^ipn iK^fefege,; was at I2h. 29' 57", 
and the diftance of the centers of b*lsi fun and moon 34". The 
moon’s parallax in latitude frdhi the'lun was then 49' 1 5,^8 S. 
which added to 34" gives 49' 49", 8 N. equal to the moon’s lati- 
2 tude 
