the Nature of the Sun. 
283 
Shallows have no Corrugations , hut are tufted. 
Feb. 4, 1801. The great shallow about a large opening has 
no corrugations. 
Feb. 18, 1801. The lower clouds of the shallow of a large 
opening, though not corrugated, are not smooth, but tufted. 
They are so closely connected in their tufts, that it makes them 
appear as if, in every vacancy, there were clouds under clouds, 
that prevent our looking far into them. 
Decay of Shallows. 
Jan. 30, 1801. The borders of the shallow belonging to the 
large opening observed Jan. 29, seem to be remarkably high ; 
so that, if the opening were near the limb, they would probably 
appear like ridges. The shallow has again a lip, nearly in the 
place where there was one yesterday. But it seems as if the lip, 
which is visible now, had a cause contrary to what produced 
it yesterday. For the luminous clouds all round the shallow 
seem no longer to be kept off by an issuing elastic fluid, but are 
probably now breaking in upon the shallow, except in the place 
of the lip, where some energy, like that exerted yesterday, may 
still remain in action ; in that case, the shallow, as well as the 
opening, is past its maximum. 
OF RIDGES. 
Ridges are Elevations above the general Surface of the luminous 
Clouds of the Sun. 
Dec. 27, 1799. On the south-following side of the sun’s disk, 
close to the margin, are some bright ridges. They are all in a 
O o 2 
