3°9 
the Nature of the Sun. 
Dec. 27. A large opening is lately come into the disk ; se- 
veral other small ones are visible ; and there are, near the prece- 
ding and following limbs, many extensive ridges. The luminous 
clouds are very plentifully and richly scattered all over. 
Jan. 15, 1800. There are three collections of openings in dif- 
ferent parts of the disk of the sun, and many ridges and nodules. 
The small indentations, as I have formerly called them, are so 
coarse, and of such irregular shapes, that they can be called so 
no longer. Corrugations, therefore, are that variety and uneven- 
ness of the whole surface of the sun, when it appears richly 
furnished with luminous clouds. 
I am now much inclined to believe, that openings with great 
shallows, ridges, nodules, and corrugations, instead of small 
indentations, may lead us to expect a copious emission of heat, 
and therefore mild seasons. And that, on the contrary, pores, 
small indentations, and a poor appearance of the luminous 
clouds, the absence of ridges and nodules, and of large openings 
and shallows, will denote a spare emission of heat, and may 
induce us to expect severe seasons. A constant observation of 
the sun with this view, and a proper information respecting 
the general mildness or severity of the seasons, in all parts of 
the world, may bring this theory to perfection, or refute it, if it 
be not well founded. 
Jan. 24, 1801. The surface of the sun is every where richly 
decked out with luminous clouds. An additional opening is 
lately come into view, attended by many spreading ridges. 
Jan. 29, 1801. If openings be a sign of richness in the illu- 
minating and heating disposition of the sun, there are enough of 
them : considerable ones are scattered in six different regions, 
taking up a broad zone. 
