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June 22, at I4 h 48' 55". Immerfion of the firft 
fatellite of u . A good obfervation, with the 18 feet 
telefcope. 
July 16, at I4 h i' 23 "4, the Moon and <r 
get together under a light cloud, and I lofe fight of 
the ftar. I believe this to be the true time of the 
immerfion. It is at lead; certain, that, after 5 or 6", 
the cloud being difperfed, the ftar was covered under 
the fouth part of the Moon. I made ufe of a 5 feet 
telefcope. The clouds prevented my obferving the 
emerfion, as likewife the eclipfe of the firft fatellite 
of u. 
July 31, at 1 2 h 16' 7", an immerfion of the fe- 
cond fatellite. A very dubious obfervation. 
The fame day, at 13 11 10' 29A Immerfion of the 
firft fatellite. A good obfervation, with the 18 feet 
telefcope. 
September 1. Immerfion of the firft fatellite, at 
9 h 49' 40". Doubtful to a few feconds, on account 
of the clouds ; with the fame telefcope. 
The variation of the magnetical needle is io° 42' 
N. W. 
In my obfervation of Venus, I found its diameter 
much fmaller than I expe&ed. I am fhort-fighted j 
fome light clouds, which now and then pafted over 
the Sun, had obliged me to ufe only a flightly fmoked 
glafs ; and laftly, the objedtive-glafs of my 9 feet te- 
lefcope does not appear to me fufficiently perfect. I 
could not meafure with the micrometer the diameter 
of the Sun, which fomewhat exceeded that of the 
field of my telefcope. The 1 8 feet telefcope, which 
I ufed in my obfervation of the egrefs, is excellent. 
2 I don’t 
