^(:1074 ) 
X'i.poi:s.coulA.k€ep fui'pendf d very gr^at and weighty Circle of 
i^^,/fiich'as M. ; ruppofeth to explicate the caafe 
}^y^he/iA md oi the great White.Circle of the Roman Pha- 
mmenon. Inwhich fuppofidonTwere alfo tobe noted the fol- 
lowing diflficuldesv /i^z-s^. T^^if therein there appears no reafon, 
vvhy the White'Circle ,^ as is al- 
^Syay,s obfervi^djajid^ha it- fliould fl}ade him according as he chan- 
^'ges IB heig'ht, though the P/^^/yi^/^^^A^^?;? do fometimes lafttliree or 
four hours : ihM this fame White Circle ^ . forrned of Ice , 
being feen by SpeftatW;S diftant enough frpm one another^could 
, ijot appear , ropncU^^^ and jto traverfe the Sua. • 
^Jhiy ^h^n^^'arh4^ 4?? pbfef.ved, therie appears- not 'at all 
this round 0ojad^enco;nf ^{Ted ^wif h ,ih^ Circle , which try 
its thick neis flioulcl hi3e a part of the'FIeavens ^ but th;it the 
,>Weatber Xe^ems almaft altogether ferene , tliere being none 
bu.t fiiaal clou^^^ ,^ ^vhich a^-^ feen.tp rchaage places , whi]ft the 
glQHX^l^Qt^^ l^hdt, in thi$ Hypo- 
thfi^s^ifii^ ^y cbanqe , /t!iat the P^rfe/^^ , V^hicfa 
. aremilje^i[ideQ{'Hie^ the interfedions of Hyih 
and,o! the , greatly futeQ^^ whicJiyet^ispbftmd to come 
ttb' paf$;always,,andilVews,^ of thefe Halos and 
'of,i]|.|j.Jl?^^^^^ againfi' the opinion, j^f 
- in .^n^tpth^ Numb. 55. 
• ' cf tkje-tr^i^^sy concerning Mineral Waters , and Extrads 
.made ont ofjhm - Commumcdted to the pMifber^ ^h'mf cf 
M uft always ackapwiedg myfel/ much obliged to ypu for 
tiiereiterafed mention you have jbeen pjeafed to,ni?ke of n>y 
|!coR inyour.^y an4 yFUfiP>%tiei)£j',^pndjefc^ 
iKt trouble',". iliaciiath :€Rfed tlxf relr^m tOTy oju;, ^ iVt;h,to^^« Ii 
could npf IiavVany^giqundiof hopey that 'any thing of p;Joe: 
flipuldhave fa^U^ under yo'^r notice^ -. And this- geodfieft of 
yours gj*f^ ,me ^ncouragOTerit to prefqfne ac thisliin^ jp'd^- 
Wr^'^W^^'i^^^ .bft th^le^4incs.j \vhict>;ife<>/;,<?0'fir.: 
