the Square l^ot, from Numbers of 8, lo, 12, or more 
places ; I {Proceeded to try it (with fuccefs^ in numbers 
of 20, 30, or 40 places. But was not curious to keep 
memorials of the particular numbers which I had fo 
confidered (sls being but a Curiofity , and not of f ur- 
ither xxIq 5) Till there happened, on occafionalDifcourfe 
^of it with a Forraigner [ Johannes Georgius Peljhover^ 
J^egio'Montanus Borujjus) who coming to lee the Vni^ 
verftty, was pleafed (as divers other Forraigners often 
do) to give me a vifit; {Febr. i8. i($^^,)ata time when 
I was afflidledwith a tedious and fevere Quarun Ague, 
(which held me, for a whole year, from 2ihout Michael- 
mas then lail paft, till about the fame time in the year 
following;:) which caufed me to pals many nights 
with little or no Heep. 
He wa? defiroijsl would tell hlln foineof thofe cam- 
bers which I'hM: fd cotffidered. Which, at the pre- 
Tetit, (for the reafon bttt now mentioned) I could not 
do : fave only that, on I)ec, 22. 166^, I had (by night, 
in the dark,) extradted the Square ^oot of 3, (With Ci- 
^:hers adjoined,) cotitin^^^ the Twentieth place of 
P^dimal ^^ra^tions.* Finding it to be 
' I. 73205-, C)k<:>TS^ '6Z%77> 2935'3,/^r^. 
Which is the Square Root of 3 , withForty ciphers ad- 
~ ^ pnedv; -^tk^^^v,. h,.. > ^ . ^ ^r^^,,,' 
3 .00000 ,6 oc^&o , C'6'o 0 , 6 o 0*0 5 , 6 ad oo-, o o'o o o, cro o o-o^o'oo O o * 
(which I had ,cha,nced to write down, becaufe / 3 is & 
Surd whrdi 1 might aftet'%ave bccafion to make ufe 
ofj But addded, th^t I couM at pleafure perform the 
like at atiy^trme; . 
And whfen h^ further preffed me fo to do 5 I did, 
"thkt fafnei ntght (by dark, in bed, -without any other 
'affiftehce thah'my MeMbryj J^ropoie to iriy felf (a:t all 
radvehtutesj' this namber, bf y 3 places. 
2, 4(J8 i, Bi'^pvioi^, 14XIJ .1315'^ it^rS; 2017, 1921, 2224, 
'2^28,3023,2x27,2931. 
and 
