IN FORT WILLIAM, 6cC. 



112 



Copernicus is alfo rejected. And by comparing the end 

 doubtful with Tycho and Copernicus of the latter part 

 in both fets, it appears to be the obfervation that mud 

 be compared with the end at Greenwich. 



The body of Tycho touched 

 pafled 



Immerfion 



Emerfion 



Grimaldi touched 



The middle of Copernicus 



The body of Tycho touched 

 paJTed 



The end 



Mean in time 5-53- 28 >3 



o 



in degrees 88.22.0.;..-; 



Jupiter's Satellites. 



From the beginning of 1774, till the 27th of December 

 1777, the obfervations were made with a middling 18 

 inch reflector. I allow 24" to compare it with the lar^e 

 reflector at Greenwich, and 1 2" for their refractor. The 

 comparifonis of actual correfponding obfervations, ex- 

 cept in two cafes, in which the Calcutta obfervations 

 are one revolution later. The Longitudes of Paris and 

 Stockholm are taken from Wargentim, Phil. Tranf. 

 vol. 6y. Lunden, from thirty-three correfpondin<T ob- 

 fervations found in that fame paper. Of Chiflekurft* 

 from Woi.laston, vol. 74. Of Geneva, Oxford, and 

 Marfeilles, from Pigot, vol. 68 and 76. Nagpoorc and 

 Chunargur were communicated to me bv Lieutenant 

 Ewart, of the Bengal cftabliihment, who obferved at 

 each place a confiderable time. 



