C 2250 ) 
which is indifferent to any three continual proportionalsjas was 
(hewed before. So that now we have had three Demonftrations 
of this Qi^iadrature5(in his K^^/fi^z^w, in his j^r/? paper, and in his 
third,) and this common fault in all of them, that they equally 
prove the proportion by him propofed, or any other what you 
pleafe* But fuch his Demonftrations ufc to be. 
And this is what I thought fit to lay to Mr, Hobj*$ Four Tapers 
{rather to fatisfie the importunity of others, than becaufc 1 
thought them worth Anfwering ; ) And fubmic the whoie^witk 
all Refpedls, to ih^ Royal Society^ to whom Mr. Hc^/ makes his 
Appeal, 
His Fourth Paper 
W^Hichcame out fince the T^r^^ /or;7?er were anfwer d , 
(containing fomo' faint endeavors to re-affert fome 
things in them,) is but meer Trifling, or worfe than fo. 
What he would therein infinuate concerning God (that we 
may as well prove Him to have had a Beginning, as that the 
World had) fmells too rank of Mr Mobs. We are not to meafure 
Gods ?^r;?2^72^W2{ Duration of Eternity, by our fiicceffive Dura- 
tion of Time : Ndrjhis \\\\\ttVhiquity^'^ Corporeal Extenfion, 
What in it concerns Mathematicks, ( whether his own or o- 
thers,)is lb weak and trivial,(and faid onIy5that he may leem to 
fay fomething,though nothing to the purple,) that 1 (hall truft 
it with thofe to whom he makes his appeal , without thinking it 
to need any Reply j The view of what he writeth againft^ being 
a lufBcienr Anfwer to all he faith* 
IV^n? Obfervations of S^oX% in the Sun 3 made at the Royal Jeademy 
ofP^rls^the 1 1,12 a?2d 1 ^th e/Auguft 1 67 1 3 a^d Engbjh't out of 
the frencb^cLsfollorvu 
T is now about twenty years fince, that Aftronomers have 
not feen any confiderable Spots in 
•^5eeNumb.74.^22I(5; Tr^^^rce the Sun,though before that time, 
it will cwvear . that fome Rich Stots r l t • ^ r 
^en fcl here). London, A Jeo. fincethe Invention of Telefcopes, 
ytiid M on''. Vicnrd aifirm'd io B,: they have from time to time ob- 
Fogdi.s«f Hamburg ^A.t/..A^rf fervcd them.The Snn appeared all 
the fciiciX)od(QY'sow7j Lttur, writ' that while With an entire brighc- 
ten to the i-nbiifi.er Auguft jW^ hfi. riels,'^nd Sigoor Caffim faw him io 
the w/Wi of this month of ^/ig^^y/. 
But 
