(io66) 
lotr j but efpeclally the upper 5 the red w^s within the Circle. 
Irhe bther parts appeared but whitifli and of little ciearnefs. The 
fpace within the //4/^7 was a little darker then that about it, cf- 
pedcllly towards the parts that were coloured. Bc^fides there 
was fen the pbi'tion of another great Circle, which touched 
^he Hahzhov?^^ and whofe extremities were bent downward, 
is reprt(^At^:f?(thfe t3/^^in^ portion of a Circk had 
alfoits ColpWslike thoCe otzhtHatd, but fainter^ The height 
of the Si^Hp it the beginning rf- the Obfcrvatibfr, ivas about 
46. degtee^?." ' There were in the Mr Kttl^ white Clouds, which 
lomewhai; tarnifh'd the blew colour of !thc Heavtos, ahdleflc- 
ned . rfe {ii'f^Ktp^fs|of the iSuti^which fhprie as in an Eclipfe. The 
w^itft(^r fe,c6l8^^^ the'feaiyn pf theyeat-,' and' it 
w^s^^ffinijed foi' ctmin, th^^ the night before^This 
j^2to appeared in the^ratti§ Beauty apd fplendbr 6f colours, un- 
ch.an^ged, from 9. in t^mprning, ( whenit began to be obfer- 
ve^) "imtila)^ fe^^ hoiir.paft ten aft^tvhich time it,bc-i 
- came falrtter anWfaim till iWo of the tfock ' in the afternoon ^ 
when It ended , after ic had refumed aUttlt more force foine 
timebefbreitdifeppeared; ^ '^v.v-.;.^..-^ \v •^..n; , 
The Obfervation of this fhdncmnon engaged M, tiugens 
to prqpofe tp, the Company, aflembledat his Ms:|efties.^ Lil^iiry, 
what hf ' h^^naedifated V forne:years agoe , ' concerriiifev the 
Gaufe, nofolily of theie Halos^ bUt alfo of the Pamliki^l 
which nave been hitherto look't upon !jy many as Prodigies^; 
and asPrpgnofticks' of fome Angular Event, 
As for the Hdos , he faid, that they were formed by fmair 
round grains , made up p( two parts , one trapfpar.entj the other 
opaque, the latter being inclofed in the former, as a cherry- 
ftone is in a cherry ^ as may be feen in the I I Figure , where- 
in A A repreftnts one of thefe grains^and B the kernel or opaque 
part('T/> drawnmuchMggcr than the na^^ to render the thin^ 
the more intelUgiUe,)/ ^-fky^'^r^ 
He related the Obfetvations of thofe who have feen Ha^I for- 
med after this manner^ and, among others, that of M. Des-Car-. 
ies in his Treatife pf Meteors 5 and explain d, hoiv that fpme 
of thefe little grains , which fwim up and down in the Air be- 
twixt us and the Sun , being lefs diQ^nt from the Axis ^ which 
exreods 
