made in the Auftrian Netherlands, 
645 
For the Longitude of Louvain. 
1773, Auguft 15, immerfion of ^’s firft fatellite. 
At nh 28' 31" by the clock, felf. 
11 28 54 ditto, my fon, 
apparent times, , 
h r n 
At Paris, M. messier, 3J feet achrom. good, — * 11 41 3 
At Geneva, M. mallet, 10 feet achrom, tine fky, — 1 1 55 58 
AtTyrnaw, F. weiss, — — — — 12 41 23 t 
At Peterfburg, — — — — • ’ 1 3 32 58 
At. Louvain, — — — — • 11 50 5, 
On a mean, Louvain Eaft of Paris 9' 7"+. 
Auguft 22, immerfion of v ’s firft fatellite. 
At 13I1 1 8' 52" by the clock, hazy, felf. 
1-3 19 24 ditto, by my fon. 
At Corbeil, M. messier, 32 inches refle&or, fine, 
At Peterfburg, — — — ■ 
At Griefswalde, — — — - 
At Greenwich, fix feet reflector, .. — 
At Louvain, — — — 
* 3.-37 25 :: 
15 28 . 20 
14 20 44 
13 26 14 
13 45 2 
On a mean, Louvain Eaft of Paris g' 4^. 
