1 
( *7 ) 
laminated, as though it had been fired ; and this 
was in Height about 8°. From hence arofe up con- 
tinually, following one another, very extenfive hori- 
zontal Columns of a bright Flame-colour, which in 
fcarce a fecond of Time reached fome to 40°, others 
above 6o° of Altitude, and many to the intermediate 
Altitudes. Each of thefe Columns were as though an 
horizontal Train of Gunpowder had been fuddenly fi- 
red, and the Flalhes regularly propagated to fuch enor- 
mous Heights in an horizontal Pofture. And there 
were innumerable Succeffions of thefe riling Flalhes, 
the Phtenomenon continuing nearly a quarter of an 
Hour. This Comparifon will alfo illuftrate feveral 
other Particulars at this Jun&ure. Sometimes there 
were feveral of thefe Flalhes afcending together, at a 
little Diftance from one another, as though there had 
been feveral horizontal Trains fucceflively and almoft 
inftantanioully kindled after one another. Sometimes 
the riling Line of Light would be continued horizon- 
tally throughout the whole Scene, in other Places 
three quarters, an half, one third, a quarter, &c. 
of the fame Length, as though thefe Trains had been 
unequally extended. Sometimes the Flalh would be- 
gin in the Middle, and run kindling to the Extreams: 
Then, at one Extream, moving towards the other } and 
at other Times in more Places than one : But in all 
thefe Varieties, the horizontal Motions ceafed, and the 
whole became one uniform Line before it had paffed 
the enkindled Edge of the Cloud, which was not above 
8°, as I obferved before. All which may be well re- 
prefented by the aforefaid Trains of inflamable Mat- 
ter, fometimes enkindled in one Place, fometimes in 
another, 
2. 
