3 
Zenith, till it rofe almoft 6o<> high; Thefe Arches 
and Pillar lafted very near an Hourj the two upper- 
moft Arches were continually quivering and fliaking 
and the Pillar always, turning to a paler Red. ’ 
I forgot to tell you, that the Night before the 
Aurora Borealis, there was a prodigious Hurricane 
of Wind, which lafted till the Saturday 
but all that Day it continued to blow, though not fo 
hard. The Arch from whence the Wind blew, was< 
from the North-weft, the fame Quarter from whence 
the Arches took their Rife. To this Day, ever ftnee 
the Hurricane of Wind, there has been a moft intenfe 
Froft: It froze fo hard, that in lefs than 24 Hours» 
5 fter It began, the Lake on the North fide of this 
City was for ftrong as to bear People on it. Tuft 
now the Wind has changed, fo that we expert a 
Thaw. ' ^ ‘ 
XXIV. A Letter from Mr. John Freke, F.R. S-. 
Surgeon /o-Sti Bartholomew’j- Hofpital to the 
Royal SocmiY, . relating a Cafe of em'a.^ 
ordinary Exoftofes on the Back of a Boy. 
GENTLEMEN, 
] ; Would not; have trouWed you -with thisf-AcCoilhc 
of 
at St 
' r- r I ^ ^ UlIS‘2\CCOUnC 
a Cafe which came ‘to tny Infpe<ftion^ Yeftdrday. 
. BarthoUmews Hofpital; I ever fecn the 
fame before in my Praiftice. I know it may be faid 
to come under the Denomination of an Exojiofts, but 
as all others that I have feen, which have been very 
many, arofe upon fome particular Parts, and have not 
been 
