the Latitude and Longitude of York. 413 
Obfervations of Jupiter’s firft Satellite continued. 
Dates, &c. 
App. time. 
/ // 
1785, Aug. 30 
J 4 2 59 
Immerfions. 
*4 7 3 
H 28 33 
Sept. 15 
12 25 2 
12 25 4 
Immerfions, 
12 29 23 
12 50 46 
Nov, 18 
7 58 6 
Emerfions. 
8 2 39 
8 12 2 
Dec. 2 
II 44 24 
Emerfions. 
ii 49 13 
York ; excellent ; air remarkably clear.,- , 
Greenwich; ditto. 
Marfeilles, M. Bernard. 
York ; good. 
York, Mr. GoODRrcKE ; good; moon-lightf' 
Greenwich ; air clear. 
Marfeilles, M. Bernard. 
York. 
Greenwich ; air very clear. 
Paris, M. Mechain ; a thin cloud* 
York ; Jupiter rather low. 
Greenwich ; ditto ; air clear. 
By letters from M. Mechain, Buda is 1 h„ 6 / gf/ eaft of 
Paris, and Marfeilles alfo eaft o h. 1 2' f / . 
I obferved with a 2 \ feet reflector, which I believe to be 
about 10" ■ of time inferior to the telefcopes of Greenwich, 
Oxford, Paris, and Buda. As for Marfeilles no inftrument is 
mentioned ; therefore, except for that place, io' 7 muft be added 
to my immerfions, and the fame fubtra&ed from the emerfions 5 
then the difference of meridians between Greenwich and 
York will be as follows, when each of the obfervations h 
compared to mine, and a mean thereof taken. 
Hhh 2 
Immerfions, 
