the Latitude and Longitude of York, 4 ri- 
me. Still I find that the great exadnefs of this method is not 
fufpeded ; I therefore fhall, in the latter part of this Paper* 
enter into fome neceflary. detail, being convinced that, in a 
very fhort time, it muft be univerfally adopted, having every 
advantage over Jupiter’s firfi fatellite, and but little inferior in 
precifion to occultations. 
Difference of our meridians by each obfervation. 
// 
/ 
// 
1781, Dec. 
20. 
4 
3 6 
1784, July 2. 
4 
23 
Dec. 
29. 
4 
IO 
Nov. 20. 
4 
23 
1 782, June 17. 
4 
25 
Dec. 20. 
4 
27 
Nov. 
3°* 
4 
20 
Dec. 22. 
4 
20 
Dec. 
18. 
4 
2 5 
1785, Mar. 19. 
4 
25 
1783, Nov. 
3- 
4 
3 2 
Aug. 16. 
4 
22 
Dec. 
6. 
4 
39 - 
Aug. 18. 
4 
36 
Dec. 
3 °* 
4 
16 
Sept. 1 2. 
4 
35 
1784, May 
1. 
4 
8: 
Sept. 17. 
4 
25 
May 25. 
4 
11 
Nov. 12. 
4 
34 
Nov. 1 4. 
4 
18 
4 
24"! on a mean. 
Obfervations of Jupiter’s firfi Satellite. 
Dates, &c. 
App. time. 
1782, June 3. 
h. 
12 
/ // 
36 48 
York, it immerged near Jupiter. 
12 
5 1 9 
Paris, M. 
Mechain. 
Immer lions. 
12 
5 1 7 
Paris, M. 
Cassini. 
l 3 
57 40 
Buda, Father Weiss. 
Vol.LXXVL 
Hh h 
Obfer- 
