C 50 ] 
when the fire was neglected, it was foon perceived 
in its motion. 
The weather here proved very difadvantageous for 
aftronomical obfervations, as well by the continual 
fogs, as fevere froft. 
1766. 
1 Obfer. March 10. Obferved by Mr. Thomas 
Wright and me; the firfl fatellite of Jupiter emerged at 
1 1 hours, 2 1 minutes, 27 feconds, equal or mean time. 
This obfervation was made with the aforementio- 
ned infiruments, and in the fame manner. This day 
I had taken feveral equal altitudes to examine the 
clock, and found it 4 feconds too flow of equal time. 
April 7. We difcovered a Comet at 8 hours, 
52 minutes; the tail of which was perpendicular to 
the horizon, with its head towards the Sun : the light 
of it was very pale, and it fet behind the hills at 9 
hours, 30 minutes. As near as I could remember, its 
pofition, when I came to look on the globe, was be- 
tween the tail of Aries and Mufca ; we made prepa- 
rations to make proper obfervations on the night enfu- 
ing; but a fog, which continued for leveral days, pre- 
vented us ; and when it cleared up, the comet had fo 
much approached the Sun, that we never after could 
fee it. 
2 Obfer. April 14. The third fatellite of Jupiter 
emerged at ]i hours, 51 minutes, 47 feconds; but 
fome flying clouds made this obfervation a little du- 
bious, which alfo occafioned lofmg the immerfion of 
the fame fatellite, Obferved by us both. 
3 Obfer, 
