292 Mr. Bowditch on the transit of Mercury, Nov. 5, 1789. 
ent time of conjunction was 5h. 28’ 45"*1, which subtracted from 10A. 
4' 49'°7, gives the longitude of that island 44. 41'04"6, whence that 
of Quebec is 44. 44’ 106. The mean of this and the former result 
is 4h. 43’ 46”*1 for the longitude of Quebec, and 4%. 40' 40’*1 for that 
of I. Coudre. 
. : @ 
Transit of Mercury of Nov. 12, 1782. 
Observations of this transit were made at Paris, Cambridge, Phil- 
adelphia, New Haven, and Ipswich. Those made in this country 
were under more favourable circumstances than those at Paris, on ac- 
count of the greater elevation of the sun above the horizon, but for the 
reasons before assigned, no great accuracy was to be expected in the 
longitudes found by comparing the American observations with each 
other; hence it was thought best not to use these observations. 
Transit of Mercury of Nov. 5, 1789. 
‘The observations at Cambridge are given in the second volume of 
the memoirs of the American Academy of Arts and Sciences, these 
at Philadelphia and Williamsburg in the second volume of the Trans- _ 
actions of the American Philosophical Society held at Philadelphia. 
The elements of this transit for Nov. 5, 1789 at 3/4. 7’ 50-9 mean 
time at Greenwich, are as follows. 
©’s Tongitude fe Delambre’s tables of 1806 app. equinox 223° 40! 454 
37s longitude e’s tables corrected by the 
Seeds at Couibrhin 223 40; 45,94: 
¥’s latitude south meade - : o Geet 
°° s horary mot “ 3 j 150 °73 
3’s horary momen in longitude : ; 199 *03 
%’s-horary motion in Arse - . a 51-78 
%’s horizontal z i. 13 03 
©’s horizontal ‘ : : 8 “89 
3’s semidiameter % 4 664° 
’s semidiameter —j Feabiten ¥ x. . - 16 07 -26 
Hotary ether e of rg hor. mot. of ¥ inlongitude - —0 061 
Q’s right janes — Ser 3 or 
: 14h. 44 52 07 
Horary increment of right sectnaionj in time - wise 
