274 Dr. Herschei/s Observations to investigate 
Eight other small openings, forming together a cluster with the 
former two, have every one also their incipient shallows on the 
same side ; that is, towards the north-following ; and none at 
all on the other parts of their margins. 
3 h 1 f. The shallow about the small opening has changed its 
direction. Itwas like Fig. 5, and is nowas inFig.6. (Plate XVIII.) 
In the farthest end of it, I expect an opening to be coming on. 
4 h 30'. There is already the appearance of an incipient 
opening.* 
Jan. 6 , 1801. The shallows about the large opening and the 
small one near it, are much altered in situation and dimensions. 
All the smaller openings near them have undergone great 
changes; some being gone, and new ones come in different 
places, while others have altered their appearance. The bias in 
the direction of the shallows is also considerably changed. 
Jan. 30, 1801. 9 h 20'. There is a cluster of small openings, 
which I expect to see united into one, by the breaking down, 
driving away, or dissolution, of the intermediate communications 
of luminous clouds. From having seen it yesterday, I know the 
largest of the openings to be a generating one. It has an 
increasing shallow r ; and the next largest opening of the cluster 
has an incipient one. 
io h 40'. The incipient shallow is now pretty large, 
1 i h 2'. There is now also an incipient shallow about the most 
south of the small openings. 
n h 6'. The shallow of the largest opening is increased. 
Maxima of Openings. 
Jan. 29, 1801, n h o'. The shallow of the largest of many 
• See Plate XVIII. Fig. 7. 
