the Nature of the Sun. 
291 
Indentations are of the same Nature as Shallows. 
Jan. 30, 1801. The depressed parts, or indentations, of 
corrugations, are of the colour of shallows ; and are probably 
of the same depth below their elevations, as shallows are below 
the general surface of the sun. 
Indentations are low Places , which often contain very small 
Openings. 
Jan. 2. 1801. That indentations are small hollow places, 
and that the pores in them are little openings, may be concluded 
from a set of real openings of different sizes, of which I see no 
less than 13. Four of them are visible openings ; five of them 
are less than the smallest openings, and larger than the in- 
dentations of corrugations ; the remaining four may already be 
called large pores. We cannot expect to see into these pores, 
as we do into holes, their diameter being too small. 
Indentations are of different Sizes. 
Jan. 31, 1800. The indentations are very uniform, but not 
round. It seems they admit of every possible shape. 
Indentations are extended all over the Sun. 
Dec. 20, 1794. I can follow the indentations, from the centre 
up to the margin of the sun ; but it requires great attention, as, 
on account of the sphericity of the disk, they become gradually 
less conspicuous, the nearer we go to the circumference. I saw 
them equally well at the north pole of the sun. 
Dec. 22, 1 799, The whole disk of the sun is strongly in- 
dented. 
P p 2 
