-RECENT CHANGES IN THE SURFACE OF JUPITER. 73 
For the two following nights the air was not in a good state for 
observation, and I did not see anything about which I will now 
detain you. I may, however, mention that on November lsta 
great enlargement, about 20,000 miles long, was seen in the belt 
north of thisone. 
On November 10th this belt had become so much enlarged and 
deeper in colour that it was almost as conspicuous as the north 
equatorial belt, and the edge of it was most irregular, the whole 
belt looking as if it were made up of a line of cumulus clouds 
more disturbed. On the 14th, 8h. 15m. p.m., at a spot then in the 
centre of Jupiter, the disturbed belt appeared cut down to its 
inal dimensions, and one-half was the old belt and the other 
the new one, if I may so express it. I found that this point of 
contraction was not in the same longitude as the one before men- 
tioned, but about 120 degrees after it. Since then the appearance 
of this belt has frequently changed, and when I saw it on the 25th 
it seemed to be made up of a series of loops or arches, and was 
more striking than ever. 
I will not longer detain you with notices of any of the many 
other changes I have seen ; but I think you must have noticed, 
in what has been said, that these changes seemed intensified i 
November ; and the reflection is suggested to me that the earth, 
in the same period, has been changing its appearance to an outside 
er. With the t st d earthquakes which have visited 
the northern hemisphere, and in the long succession of cloudy 
hich we have experienced, a distant 
hanges on the : Wea | 
rth passes through the great meteor stream, is a time at which 
ais ; y thunderstorms reach Have these meteors, or some 
external cause, anything to do with the chan which have 
dashing into the sun with a momentary flash stirred the magnet- 
ism of the earth, and recorded itself on the self-recording magneto- 
