( 17 ? ) 
lefcope, on a white Paper, in a darkened Room, Thefe 
mutable Spots the Weather hindred me from feeing 
again till November the 22d. followings and then they 
were become only like a thin Smoak, or Nebula. 
So agiin April n. 1704. there were divers Spots with 
Umbra abcm them. Thefe Umbra , or Nebula, I could 
plainly perceive, whiift I was looking on them, to be 
lbmetinaes very faint and thin, and fometimes much 
darker and thicker. Thefe Macula and Umbra I ob- 
ferved fuddenly brake out in the Sun : For, on April 9. 
the Disk was free. But this April 11, laid: mentioned, 
I perceived them advanced near a quarter part on the 
Disk : And consequently they brake out in the Sun 
within 48 hours before. On April 13; the Spots were 
become Umbra, in the Morning 3 and at Four of Clock in 
the Afternoon, there were no Remains of either Macula- 
ox Umbra. 
From this fhort continuance of thefe Spots on the 
Sun, it is more than probable, they were in a perpetual 
Flax and Change 5 and that thofe Mutations which l 
perceived in them, whiift I was looking on them, were 
real, not imaginary. 
Alfo it may be farther remarked, ( which I have fre- 
quently obferved, and which as I remember Scheiuer 
obferv’d long ago) That thofe Spots and Umbra which 
fuddenly arifb, do as fuddenly decay, and are foon ex- 
tinft. And fuch Spots, I have farther obferved, do 
feldorn turn to Facula , as they commonly do when lon- 
ger on the Sun, as I fhall obferve by and by. 
Again, May 5. 1705. I could perceive two Spurs or 
Branches (running from a Spot) to change, and b&: 
fometimes darker, fometimes thinner. 
So March 50. 1706. I obferv’d fuch another Varia- 
tion. This Day, or but little before, Spots with Facula: 
arofe in the Sun, which remained not above three Days 
on him. One of thefe Spots I could manifeftly per- 
ceive.- 
