I 
[ 409 3 
flying clouds j which, however, did not deprive me 
of any obfervation I was capable of making. It be- 
gan here at 1 8’' i by the clock, or 1 8*^ 42' 
24''' mean time (a cloud had juft pafted j but I can 
be fure It was not vifible 2I' or 3" before) j and it 
ended at 20’’ 28' by the clock, or 20*' 28' 8''' 
mean time. I ufed the magnifying power 55, as I 
had done for the tranfit. As I have no micrometer, 
the beft method I thought I could take to obferve 
the phafes of the eclipfe, was by the immerfions and 
emerlions of the fpots j which, if there were compa- 
rative obfervations in other places, might meafure 
them better than any inftruments I have. The 
fcheme annexed (hews the fituation of the fpots, as I 
judged of them by my eye; and the obfervations 
that follow refer to the numbers in the drawing, 
Tab. XVII. fig. i. 
Mean time. 
h ' " 
18 42 24 Beginning of the eclipfe. 
44 37 Spot I immerges. 
19 3 17 'I'he nebula of fpot 2 begins to im- 
inerge. 
4 47 - Spot 2 quite immerged, but not the 
nebula. 
14 56 Spot 3 immerges. 
16 44 Spot 4 immerges. 
18 Spot 5 immierges, 
19 29 Spot 6 immerges. 
24 56 Spot 7 begins to immerge. 
25 22 Spot 7 immerges entirely. 
30 2j;: Spot 1 immerges. 
VoL. LIX. S g Mean 
