the Nature of the Sun. 273 
had come up through the pores or incipient openings, and spread 
itself on the luminous clouds, forcing them out of the way, and 
widening its passage. 
Feb. 18, 1801, 7 h 44'. The south preceding one of three 
large connected openings,* has a narrow branch coming from 
its shallow. 
9 h 55 '• The opening is broken out at three places ;*f- and the 
shallow has three projections just opposite. It is plain that the 
breakings-out and the projections must have the same cause ; 
which probably acts first at the opening, and widens it, then 
goes forward, and occasions the corresponding projections in 
the shallows. 
The shallow is very large on that side where the breakings- 
out are situated ; and, on the contrary, very narrow on the oppo- 
site, or, as it may be called, the quiescent side. 
io h 12'. The broadest of the little sprouting shallows is oppo- 
site the broadest of the breakings-out, or encroachments of the 
opening on the general shallow. 
Direction and Operation of the disturbing Cause. 
Jan. 24, 1801. A small oblong opening, nearW preceding 
large one, has on its north side a very long shallow. This made 
me surmise, that the elastic fluid coming out of it might have a 
strong direction from below, towards that side. Examining 
therefore this opening all round, I found that the shallow ex- 
tended only to one side, leaving the other parts full of luminous 
matter close to the margin of the opening. And, on examining 
the large opening, I found that the shallow about it was also 
larger, in the same direction as the shallow about the small one 
* See Plate XVIII. Fig. 3. f See Fig. 4. 
Nil 
MDCCCI. 
