made in the Auftrian Netherlands. 195 
At ostende, Dec. 23, 1772. 
Emerfion n ’s firft fat. at 4I1 5 2' 48" by the clock. 
Apparent time. 
h ' " 
Emerfion at Greenwich, by Nautical Almanac, 4 22 1 
Error of tables, as Nov. 21, -f- 12 
Greenwich Weft of Paris, -f 9 16 
Emerfion at Paris, 4 3 1 29 
I obferved it at Oftendc, 4 34 2 
Oftende Eaft of Paris Obfervatory, in time, 2 33 
Or 38' 1 5" in parts of a great circle. 
Twilight ftrong; Iky very clear and ferene; good ob- 
fervation. 
Dec. 24, at 3 hours P. M. I found the declination of 
the magnetic needle Weft 20° 35J'. 
At tournai, 1773. 
By a mean of 1 4 meridian altitudes of the Sun and 
ftars taken in January, one of which only gives the la- 
titude 2 2 r/ ,8 different from the mean of the whole, I 
determined the latitude of my obfervatory in the Rue 
des Jefuites 50° 36' 57"+ North. 
The weather would not permit to obferve either y. ’s 
fatellites, or an occupation of a ftar by the Moon, for the 
longitude of Tournai. 
C c 2 
XII. An 
