[ 6 + 8 ] 
much. At a Farm, three Quarters of a Mile NE 
of Hatfield-, it was felt by the Farmer and his Fa- 
mily, but not perceived by the Inhabitants of Hat- 
field itfelf. 
In like manner at Hertin fordbury , a Village a 
fmall Mile Weft of Hertford , the Shock was felt 
diftin&Iy; but not obferved by any of the Inha- 
bitants of Hertford. 
At my own Houfe at \ Panfh'anger , two Miles 
Weft of the above-mentioned Town, the Noife 
was heard twice, at the Interval of about half a 
Minute, refembling the Rumbling of a Cart thro’ 
the Streets ; but no Shock felt either within or 
without-doors. 
This Circumftance of the Noife being heard 
without any fenfible Tremor or Heavings of the 
Earth, makes me imagine, that the Force of the 
Vapour was fpent before it reached that Place ; and 
thereabouts may be reckon'd the Northern Limit of 
the Earthquake at leaft, I have not heard of any 
Places more to the North that were affected by it. 
It is no wonder, in a Shock fo fudden and alarm- 
ing, that very few fatisfa&ory Obfervarions are made, 
either as to the Nature of the Shock, the Dire&ion of 
the Tremor, the Time it was felt, or its Duration 5 of 
none of which can I give you any Particulars. I ftiould 
not have troubled you with thefe I have collected, but 
for my Promife ; and that I thought that one Obfer- 
vation, made at my Houfe, in lome degree fixed the 
Extent of the Shock to be limited thereabouts} and 
might not therefore prove quite an immaterial one. 
1 cannot help mentioning a luminous Arch, which 
appear’d Feb. 1 6. about 9 at Night. It had Arfiurus 
in 
