Dr. Herschei/s Observations on the 
which I saw in the first part of the evening ; but it is not 
easily possible to determine whether the air might not be less 
clear then. I saw all other phenomena on Saturn extremely 
well, many times, between i h and 3 h ; but not the belts so well 
as now. (H) 
6 h 3 6'. The belt remains as free from interruptions as it 
was at 5 h 58'. (I) 
6 h 52'. I see the planet not so well defined now, as I did in 
the first part of the evening ; being at present nearer the ho- 
rizon ; but I see the belts better than I did at that time. (K) 
Dec. 6. 22 h 28' (Cor. — 7' 57 "^) I see the quintuple belt 
very distinctly. (L) 
22 h 55 '• I see quintuple belt as readily as I see the rest 
of the appearances on Saturn. (M) I took care to bend my 
head so, as to receive the picture of the belt in the same direc- 
tion upon the retina, as I did December 4, at 3 h 38 .* 
2 3 h 55 '. I now see the quintuple belt full as well as I did 
Dec. 4, at5 h 38'. (N) 
i h 23'. That part of the quintuple belt which is now on the 
meridian, or centre of Saturn, is much less separated and de- 
fined than what was there at 23 h 55'. (O) 
2 h 26'. The divisions in the quintuple belt are not grown 
distincter, but rather more confused than they were before ; I 
can scarcely perceive them. (P) 
3 h 28'. The uppermost of the small dark belts, in that part 
which is on the meridian, is very faint, and the most north is 
rather darker than before. (Q) 
* This was a precaution that occurred to me, as there was a possibility that the ver- 
tical diameter of the retina might be more or less sensible than the horizontal one ; 
but I had no reason afterwards to suppose that any such difference really exists. 
