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I. Extraff of a Letter from Mr. Chriftopher 
Mafon, concerning a Fire-ball feen in the 
-dir, and a great Explojion heard \ Dec. 1 1, 
Aife'l % of the N the r I th Inftant, at Buckfteep in 
Royal society, 1 W JVarbleton PariQi, in the County 
on January 7. of SujJex> about a Quarter before 
One o’Clock in the Afternoon, I ob- 
ferved a very dark uncommon Appearance in the 
North, and at the fame time the Sun fhone bright at 
my Back 5 when, on a fudden, there was an Explo- 
fion, as violent as the Report of a Mortar-piece, 
attended with a rumbling Echo, which run Eaft ward ,* 
and as near as I could conje&ure, it came from about 
40 Degrees of Elevation. Several People faw a Ball 
of Fire, which ran nearly Eaftward, leaving a Train 
of Light, which continued fome time. The Ball of 
Fire was feen, and the Report heard very loud, at 
Sompting-, beyond Shoreham. Although I had been 
gazing upon the black Cloud for fome Minutes, yet 
I faw no Fire nor Lightning. 1 am, &c. 
Dec. 28. 1741. 
Chr. Mafon, 
V 
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II. A 
