The Obfer/efj M.£/?2^««^,notes,that,when he made this Ob« 
fervatioDj the River of C/&^r^w, which runs very near from 
Seuth to Nmh, was betwixt him and the Rainbow 5 and that he 
flood Level with this River, whence he was diftant not above 
1 50. paces; which he adds, that the Curious may the better judge 
of this Obfcrvation. 
A Relation 
Of an Accident hy Thunder and Lightning^at Oxford* 
This was imparted by Dr. PVallis in a Lettcr^written at Oxford, 
May 1 2. 1666. to the Publijher^ as follows : 
I iliould fcarce have given you fo foon the trouble of another 
Letter, were it not for an Accident which hapn d here May 10, 
I had that afternoon, about 4. of the clock heard it thunder at 
fome diftance. About of the clock the Thunder coming 
nearer to Uf, it began to rain , and foon after (the rain withall 
iucreafing) the Thunder grew very Ioad,and frequcntsand with 
long ratling Claps (though not altogether fb great , as I h<ive 
fome other times heard ;) and the Lightning with flaftes very 
bright ( notwithftanding the clear day-light) and very fre- 
quent, (when at the the f afteft , fcarce a full minute between 
one flafli and another i many times not fo much , but a fe- 
cond flalh before the Thunder of the former was heard The 
Thunder for the moft part began to be heard about 8. or 
10. fecond minutes after the flalh; as I obferv'd for a great 
part of the time by my Minute- Watch : but once or twice 
I obferv'd it to follow C in a manner) immediately upon it, 
as it were in the fame moment ; and the lightning extream 
red and fiery. I do not ufe to be much apprehenfive of Thun- 
der and lightning, but I was at this time (I know not well,why?) 
very apprehenfive, more than ordinary, of mifcbief to be done 
by itjfor it feem'd to me to be very low and near Us(which made 
me fo particular , as to obferve thediftance of the flafli by the 
noife)and very trcquent^and bright,fo thatjhad it been by night 
as it was by day, it would have been very terrible. And, though 
I kept within doors, yet I fcufibly difcover'd a flinking fulphu- 
reoiis fmell in the Air. About /, of the clock it ended, before 
which time I had news brought me of a Sad Accident upon the^ 
water 
