h"8] 
had but a fancy as to this matter, the next that I met with had ano- 
ther to contradid it, which argues that it did not pafs flopeing 
like a train, impreffing a motion upwards, at the fame time that 
it (hot it fclf acrofs the earth through the cavities below. For 
then it might have been perceived to pafs forwards, as well as 
that defcribed in the Tranfa^lion yn. lo. was at B Utchington^ iho 
not fo plainly, at that terrible one, which happened in Calabriaj 
MArchij, Jmoi6^S. defcribed by Kircher {frdtfAt, ad mHytdum 
fdter,) ""^httt Author perceived it coming.towards him with 
an hideous bellowing, as from the lOand StrongoU^ and defcribes 
thofe cmkuU^ through which it pafled, affirming that he guefled 
at them before, li. 4. §. 2. c. 10, 
Notwithftanding I cannot fay, but that fome parts of ^hofe 
damps and vapours, which we fupp<Jfe tohauecaufed our earth- 
^uakehcre^ might be rarified before others, and fo the motion 
be carried on below for a while, until they were able to produce 
an uniform fhaking upwards and above. 
1 2 The time of the day, at which this earth^juake happened, 
pafles for the fame in every place, that felt it ^ all fay about feven 
a clock : but I dare make no inference from hence, that the 
fhaking really was in all places at the the fame time, unlefs the 
time had been exadly obferved, to a minute at leall, in feveral 
places. For fmce all tremors and founds, as well the greater, as 
* iefs, are found to mo ve to an equal diftance in an equal time ^ more^ 
over fince the found of a fmall gun, as well as that of a Can- 
noD's for inftance, moves z^o Orgja ^arifina or hexafodes^ i.e. 
460 yards, in a fecond, as appears by the curious experiments 
of Merfenms'y it follows, that all founds will move above 15 
miles in a minuro and above 940 in an hour, and confequently 
the trembling of the earth pafling along with a continued noife, 
may befuppofed as quick'in its motion, and foit hath been ge- 
nerally experienced in all earthquakes. 
I know not therefore what to judge, as to the motion of this 
earthe^mke^ by fo rude an account of the time, nor can any thing 
be inferred from the moft ejfad obfervations, that have been made 
in this town fingly, they are indeed to be commended, and 1 
could wifh, that for the future leahied men efpecially would be 
more curious in this matter, fmce feveral confiderable conclufions 
may be drawn from thence. And to (hew what it is to bemifta- 
ken in a minute, let us admit, what hath been difproved by the 
8th Obferv. that this earthcjmks'Vizs eaufed by a violent concuffi- 
on of any particular place, and that the trembling was thence,! 
