as appears in Tab, i. Fig. 8. And when we were preparing to 
meafure its diltance from the parallel of the Diurnal motioo 
of the Suns Center,the Clouds, which rofe from the Honi^c^j in- 
tercepted it from our fight. 
The apparent velocity of theSpo'^s, when they approached 
to the Suns center, (which had been noted in the firfl Dif- 
courfe) gave ground to determin their apparent Periodical 
Revolution about the Suns Axe abcuc Twenty [even days and an 
half J (uppofing them to be adherent to his Surface, or at leaft 
vrrv nigh to it/ and confcquently that from the morning of 
the I ^th of Ji/guf{^vfhci\ they were near h's center^they fhoukl 
take between fix and feven days to arrive at the limb of his 
apparent d if que ; the which hath come to pafs conformably 
to the Obfei vations made fince that time^ For^fiiice the morn- 
ing pf the 13th unto the evening of the i^th, when they were 
feen nigh the limbjthere are 6| days j and then ihey .were yet 
fo far diftant from iCj that it was eafie to Judgej they, would 
not come out that day* The Clouds and Night did then hin- 
der to obferve them 3 but in the morning of the 2oth^ which 
was not the full feventh from the day that they were arrived 
to the middle of ihc difqae,they were dif-appeared. This like* 
wife agrees well enough with what had been pra6tifed,c'?;^.that 
thefe Spots during the fourth part of the time of their motion 
about the Surs centcfj calculated according to this Hypothefis^ 
and upon the fiift Obfervations^ would remain in IVeJletn 
.Quadrants . 
Th- apparent Velcciry nigh the Center was fuch that if it had 
continued the famejthcSpots would have arrived almoft in 
days to the Limb of the difque,- but in this Hy pot hfjis. this ap- 
parent velocity was toleffeo according as the Spots fliould re- 
move from the Center j as hath come to pafs in elR (S^.- The 
diminution of the Length of the Mifty Crown was in a manner 
proportionat to ths diminution of the spparent Velocity 5 
fince thatj when this Crown wasin the raidie^and in a fcitoaii* 
oUjWherein its true figure could be beft fecn, it appeared cb- 
longhand of the form of an human Earjits greateft diameter re^ 
fpedingEaft andWcft ; but being nigh the Limb^ this fame 
diameter feemed to fhoitcn^ and having sppeared greaiefi: 
ni 
