the Nature of the Sun. 277 
small openings. They are nearly of the size of the general cor- 
rugations of the solar surface at present. 
Decaying Openings turn sometimes into Pores. 
Feb. 10, 1800. i h o'. Between the half of the opening and 
that part which was nearly covered in yesterday, is a set of inden- 
tations, with pores rather larger than they are in general. 
When Openings are vanished, they , leave Disturbance behind. 
Dec. 28, 1799. i2 h 10'. There is a place among the cor- 
rugations, where they are coarser now than they were an 
hour ago. 
i h . Two considerable openings are broken out, in the place 
where the corrugations were coarse. They are both so com- 
pletely dark, and free from thin luminous clouds, that it appears 
very plainly they were only hidden behind the slight covering of 
luminous obstructions ; one of them is about the place where 
the opening of yesterday was situated. 
Jan. 24, 1800. There is a pretty large place, which contained 
the openings observed the 22d, the luminous clouds of which 
are in a state of disturbance : it includes five or six places, 
where the pores of indentations assume the shapes of incipient 
openings, and after some time lose them again, more or less. 
Feb. 11, 1800. There is a place which I suppose to be that 
where the now vanished openings were yesterday : it seems to 
be rather disturbed in the arrangement of its corrugations. One 
of the indentations is probably an evanescent opening, as it still 
shews a considerable pore. 
